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Laboratory instruments

Some of the recently added instruments to the laboratory.

Instruments in the Lab

Environmental-pollution (Envilution®) chamber

The emergence of low-cost sensors (LCSs) has rapidly changed the landscape of air pollution monitoring. Unlike regulatory standards with comprehensive processes for performance evaluation and certification for reference equipment, no accreditation or regulatory standards exist for LCSs. Hence, calibration and performance assessment of the LCSs are carried out via co-location experiments with high-end reference instruments under limited ranges of environmental conditions and pollutant concentrations.

Members of the GCARE team designed, built and tested an environmental-pollution (referred to as ‘Envilution®’) chamber to generate a controlled environment for temperature and relative humidity (RH) along with different concentrations of particles. This was to enable varied real-world environmental conditions (T/RH) and pollution concentrations (PMs/NOx/O3/SO2/CO) to be generated for the performance evaluation of LCSs.

The unique features of the chamber, including low capital cost, small size and lightweight, low maintenance and operational costs, as well as ease of operation, gives it the potential for it to be an ‘on-demand’ package for LCSs' testing.

Read more about the chamber

Recent publication

Omidvarborna, H., Kumar, P. and Tiwari, A., 2020. ‘Envilution™’ chamber for performance evaluation of low-cost sensors. Atmospheric Environment, 223, 117264.

Filter testing rig

The GCARE Filter Testing Rig has been developed to measure the filtration efficiency of filter media for facemasks.

A test filter is placed inside a custom-made filter placeholder of dimensions (6 cm × 6 cm) within the chamber. A portable fan is placed inside the chamber for better mixing of flow at the lower flow rates.

To measure aerosol size concentrations before and after the test filter, the sampling probes respectively are connected to the fast particulate analyser (DMS500). A novel four-way solenoid switching system, constructed for this study, is used with the particle analyser to measure particle number concentration (PNC) at any four selected locations.

Fast particle analyser

The fast particle analyser (DMS500) uses electrical mobility measurements to produce particle size/number spectra between 5 nanometres and 1 micrometre (soon to be upgraded to 2.5 micrometres).

Since the classification of particles according to their differing electrical mobility takes place in parallel (rather than in series as in a scanning instrument), these instruments can offer the fastest available size/number spectral measurement of its type. The user interface processes the spectral data in real-time to output particle mass, surface area or number, as well as basic spectral information.

Read the DMS500 manual (PDF)

Recent publications

Goel, A., Kumar, P., 2016. Vertical and horizontal variability in airborne nanoparticles and their exposure around signalised traffic intersectionsEnvironmental Pollution 214, 54-69.

Goel, A., Kumar, P., 2015. Zone of influence for particle number concentrations at signalised traffic intersectionsAtmospheric Environment 123, 25-38.

Azarmi, F., Kumar, P., Mulheron, M., Colauxc, J.L., Jeynes, C., Adhami, S., Watts, J.F., 2015. Physicochemical characteristics and occupational exposure to coarse, fine and nanoparticle emissions during building refurbishment activitiesJournal of Nanoparticle Research 17, 343, doi: 10.1007/s11051-015-3141-z.

Al-Dabbous, A.N., Kumar, P., 2015. Source apportionment of airborne nanoparticles in a Middle Eastern city using positive matrix factorizationEnvironmental Science: Processes & Impacts 17, 802-812.

Goel, A., Kumar, P., 2015. Characterisation of nanoparticle emissions and exposure at traffic intersections through fast-response mobile and sequential measurementsAtmospheric Environment 107, 374-390.

Electrical low-pressure impactor (ELPI®+)

The ELPI®+ (Electrical Low-Pressure Impactor) from Dekati® is a widely-used and well-characterised particle size spectrometer for real-time particle measurements. It enables measurement of real-time particle size distribution and concentration in the size range of 6 nm – 10 μm at 10 Hz sampling rate.

The measurement method is the same for all the particle sizes, making it the only instrument available on the market that operates in such a broad particle size range using only one measurement technique.

Since it also measures a wide range of particle concentrations, it is well suited to both high and low concentration applications, such as environmental air quality or direct combustion source measurements. Its robust structure is designed to be used even in harsh environments and sample conditions, and the high temperature version can be used to sample aerosols directly for temperatures up to 180 °C.

Read the ELPI+ manual (PDF)

Environmental dust monitor

This environmental dust monitor (Grimm) is designed both for stationary and mobile use to measure PM10, PM2.5 and PM1, simultaneously as a standalone measuring system. It is small and light and can be used for a multitude of applications.

This Portable Mini Laser Aerosol Spectrometer is a compact instrument, with reliable optical particle detection for counting and classifying dust particles, as well as advanced data communication. It is suitable for continuous measurements via power supply or flexible usage with a battery and remote control for real-time data acquisition and data analysis. Some benefits include:

  • Versatile data acquisition and communication
  • Real-time monitoring of particle number and PM values (PM10, PM2.5 and PM1)
  • Additional information for particle size distribution, particle surface, and dust mass
  • High precision with 31 size channels and good reproducibility
  • Integrated 47 mm PTFE-filter (GRIMM dual technology)
  • Self-test for all-optical and pneumatic components assures high-quality standards
  • Internal rinsing air protects the laser and detector in the optical cell
  • Optional sensors for temperature and relative humidity
  • Ease of use via keypad or GRIMM software (cordless)
  • 11 size channels < 1µm for precise submicron detection
  • Total inlet volume flow (1.2 litres/min) is analysed in the optical cell
  • Excellent counting statistics and reproducibility at low and high dust concentrations.

Recent publications

Abhijith, K.V. and Kumar, P., 2019. Field investigations for evaluating green infrastructure effects on air quality in open-road conditions. Atmospheric Environment 201, 132-147.

Omidvarborna, H., Kumar, P. and Tiwari, A., 2020. ‘Envilution™’chamber for performance evaluation of low-cost sensors. Atmospheric Environment, 223, 117264.

Ottosen, T.B. and Kumar, P., 2020. The influence of the vegetation cycle on the mitigation of air pollution by a deciduous roadside hedge. Sustainable Cities and Society 53, 101919.

Sharma, A. and Kumar, P., 2020. Quantification of air pollution exposure to in-pram babies and mitigation strategies. Environment International 139, 105671.

Aerosol generator

Solid particle aerosols produced from suspensions, e.g. with biological agents, and solutions such as NaCl and KCl, are required for numerous applications in research, development and quality assurance. NaCl/KCl aerosols or aerosols produced from biological agents are prescribed as test aerosols in various standards to ensure comparability of filter media, measuring equipment and filters.

Test aerosols, to deserve to be called such, must be generated consistently in terms of particle size distribution and particle concentration over the test time period. Furthermore, it must be possible to produce the particle size distribution and concentration.

A specially developed nozzle as part of the generator ensures that these requirements are met by preventing the crystallization of the salt crystals at the nozzle outlet. The particle size spectrum can thus be adjusted reproducibly in the range from approx. 5 nm up to 15 µm, depending on the concentration of the solution. This aerosol generator (AGK 2000) is available with a curved drying column and optionally pressure-resistant up to 10 bar.

Recent publication

Omidvarborna, H., Kumar, P. and Tiwari, A., 2020. ‘Envilution™’ chamber for performance evaluation of low-cost sensors. Atmospheric Environment, 223, 117264.

Ultrafine particle counter

The Ultrafine Particle Counter (TSI P-TRAK) measures aerosol particles ranging from 1000 nm down to 20 nm in size. This instrument gives direct and real-time measurement of workplace ultrafine particulate levels.

Read the ultrafine particle counter manual (PDF)

Recent publications

Abhijith, K.V. and Kumar, P., 2019. Field investigations for evaluating green infrastructure effects on air quality in open-road conditions. Atmospheric Environment 201, 132-147.

Sharma, A. and Kumar, P., 2020. Quantification of air pollution exposure to in-pram babies and mitigation strategies. Environment International 139, 105671.

Indoor air quality monitor

The indoor air quality monitor (TSI Q-Trak model 7575) measures carbon dioxide (CO2), carbon monoxide (CO), temperature and relative humidity. The instrument is designed to work with a wide range of plug-in probes, which expands measurement capability.

Read the TSI Q-Trak model 7575 manual (PDF)

Recent publications

Abhijith, K.V. and Kumar, P., 2019. Field investigations for evaluating green infrastructure effects on air quality in open-road conditions. Atmospheric Environment 201, 132-147.

Sharma, A. and Kumar, P., 2020. Quantification of air pollution exposure to in-pram babies and mitigation strategies. Environment International 139, 105671.

Harvard impactors (or) compact cascade impactors

The Harvard impactors or also known as compact cascade impactors (CCI) that consists of four impactor stages and an after filter (backup filter).

The CCI is compact (∼35 cm H and 11 cm O.D.), and is relatively lightweight (∼3.5 kg). Each stage consists of a slit-shaped acceleration nozzle and a rectangular polyurethane foam (PUF) impaction substrate (density = 20 kg/m3, Merryweather Foam, OH).

The PUF substrates are easily inserted and removed from a substrate base and securely transported to a laboratory for gravimetric or chemical analysis. The optimal thickness of the polyurethane foam for all stages is 0.64 cm, which assures that particles do not penetrate through the PUF to the substrate holder.

Ultrafine particles (less than 0.16 μm) are collected on a 47 mm diameter 2μm pore Teflon membrane filter. Other filter materials such as polypropylene fiber (Monadnock, Grade 5300) can also be used to collect the ultrafine particles.

MiniVol portable air sampler

This MiniVol Portable Air Sampler (MiniVol™ TAS) samples ambient air at 5 litres/minute for particulate matter (PM10, PM2.5, TSP). This sampler is lightweight and portable, and gives results that closely approximate data from Federal Reference Method samplers. It is ideal for remote areas or locations where no permanent site has been established.

Read the MiniVol manual

Black Carbon monitor

The pocket-sized Black Carbon aerosol monitor is small enough for mobile applications and provides aerosol Black Carbon concentrations in real-time. The device is a self-contained instrument with a built-in pump, flow control, data storage, and battery designed for on-person exposure monitoring.

The instrument can operate continuously for up to 24 hours (microAethAE51) or up to 2-3 weeks (micorAethMA200).

The links to their manuals are available in microAethAE51 (PDF) or microAethMA200 (PDF).

Recent publications

Abhijith, K.V. and Kumar, P., 2019. Field investigations for evaluating green infrastructure effects on air quality in open-road conditions. Atmospheric Environment 201, 132-147.

Sharma, A. and Kumar, P., 2020. Quantification of air pollution exposure to in-pram babies and mitigation strategies. Environment International 139, 105671.

Laser particle counter

A Laser Particle Counter (Dylos DC1700) with two size ranges (>0.5 and >2.5 microns) - small (bacteria, mold, etc) large (pollen, etc.), this instrument is the company improved, battery-operated air quality monitor.

Like earlier models, it features technology and engineering that allow monitoring of indoor air quality. The LCD screen provides small (>0.5 microns) and large (>2.5 microns) particle concentrations along with a dynamic bar graph showing instantaneous particle activity.

Read the laser particle counter manual

Recent publication

Kumar, P., Hama, S., Nogueira, T., Abbass, R. A., Brand, V. S., Andrade, M. F., Asfaw, A., Aziz, K. H., Cao, S. J., El-Gendy, A.,  Islam, S., Jeba, F., Khare, M., Mamuya, S. H., Martinez, J., Meng, M. R., Morawska, L., Muula, A. S., SM, S. N., Ngowi, A. V., Omer, K., Olaya, Y., Osano, P., Salam, A., 2020. In-car particulate matter exposure across ten global citiesScience of the Total Environment 750, 141395.

The low-cost particle monitor sensor (OPC-N3) measures particles from 0.35 μm to 40 μm, sorting into 24 size bins.

The sensor features include improved aerodynamics with reduction of particle deposition, better low end performance, extended upper size measurements and high/low flow rate digital selection. It can measure pollution levels up to 2,000 μg/m3 with the unique feature of being able to size speciated pollen.

Read the technical information sheet (PDF)

The Sioutas Personal Cascade Impactor separates and collects airborne particles in different size ranges. It is the only personal impactor that efficiently samples coarse, fine and ultrafine particles simultaneously. The Sioutas Impactor is used with the Leland Legacy sample pump at 9 L/min to ensure precise particle separation at the specified cut-points.

The following features are included:

  • Precise particle separation
    • Particle size cut-points: 2.5 µm, 1.0 µm, 0.5 µm and 0.25 µm
    • Maintains high collection efficiency even at high particle concentrations
  • Preserves unstable compounds
    • Chemically inert collection substrate
    • No impaction grease to contaminate the sample
  • Suitable for indoor and outdoor sampling
  • Size-fractionated samples can be analysed gravimetrically, chemically, and microscopically.

Some of the applications include its use for studies of occupational hygiene Indoor Air Quality, air pollution, inhalation toxicology and epidemiological, aerosol research, pharmaceutical, and outdoor ambient sampling.

Read the operating instructions (PDF)

The Active Personal Particulate Monitor is an advanced instrument designed to actively measure the concentration of airborne particulate matter (liquid or solid), providing data logging and a continuous readout.

The instrument (pDR-1500) offers two particle size-selective inlet cyclones, as optional accessories, which permit size segregated measurements (e.g., PM10, PM4, PM2.5, PM1, etc.) enabling the user to perform aerodynamic particle discrimination by varying the sampling flow rate. The pDR-1500 incorporates, downstream of its photometric sensing stage, a 37-mm filter holder on which all sampled particles are collected for subsequent analysis of gravimetric reference calibration.

Read the instruction manual (PDF)

NO/NO2/NOx monitor

The NOx Monitor (2B Technologies; Model 405 nm) is designed for the direct measurement of atmospheric nitrogen dioxide (NO2), nitric oxide (NO) and total reactive oxides of nitrogen (NOx = NO + NO2).

The concentration range is 0-10,000 ppb (0-10 ppm) for NO2 and 0-2000 ppb (0-2 ppm) for NO with high precision and accuracy. NO2 is measured directly by absorbance at 405 nm. NO is measured by selective conversion with ~100% efficiency using the highly selective reaction of NO with ozone (O3). Total NOx is obtained by addition of NO and NO2.

Read the monitor's manual (PDF)

Recent publication

Ottosen, T.B. and Kumar, P., 2020. The influence of the vegetation cycle on the mitigation of air pollution by a deciduous roadside hedge. Sustainable Cities and Society 53, 101919.

Ozone generation and calibration instrument

The Ozone Generation and Calibration instrument (Model 306 Ozone Calibration Source™) is a portable source of ozone that allows users to generate/calibrate ozone. The instrument scrubs ozone from ambient air and can produce any mixing ratio of ozone in the range of 30 to 1000 ppbv up to 3.0 L/min volumetric.

Read the instrument's manual (PDF)

Ozone analyser

The Ozone Analyser (Model 49i) measures the concentration of ozone in the ambient air with the dual-cell, UV photometric Ozone Analyser. The key features include the following:

  • Measures concentrations of ozone in the air from 0.05 ppb p to 200 ppm
  • Dual and auto ranges as standard features with a response time of 20 seconds
  • User-settable alarm levels for concentration and for a wide variety of internal diagnostics
  • Ethernet port as well as flash memory for increased data storage and field upgrade capabilities.

Read the Ozone Analyzer manual (PDF)

Carbon dioxide temperature RH data logger

The use of this small portable CO2 logger (MX1102 model) makes it more convenient than ever to measure and record CO2 in buildings and other non-condensing environments.

It measures CO2 from 0 – 5000 parts per million (ppm) – and the free instrument’s mobile app allows access to data directly from the mobile phone or tablet within a 100-foot range. The instrument also features a USB port so that it can be used with a computer running the manufacturer’s own graphing and analysis software.

Read the manual

Recent publication

Kumar, P., Omidvarborna, H., Pilla, F. and Lewin, N., 2020. A primary school driven initiative to influence commuting style for dropping-off and picking-up of pupils. Science of the Total Environment, 138360.

Solenoid switching systems

A fast response 4-way solenoid switching system for pseudo-simultaneous measurements of particulate and gaseous air pollutants has been designed and manufactured in our centre.

The instrument operates by automatically switching the sampling flow between four different locations while tracking solenoid switching times and sampling locations. The instrument manual is available locally.

AQMesh

AQMesh is an air quality monitor for measuring pollutants in ambient air using electrochemical sensors. The sensor measured the NO (0-20,000 ppb), NO2 (0-20,000 ppb), SO2 (0-100,000 ppb), CO (0-1,000,000 ppb), and O3 (0-20,000 ppb) at 15 minutes temporal resolution.

The sensor pod also measures temperature, relative humidity and atmospheric pressure. Manufactured in the UK by Environmental Instruments Ltd, the monitor is supported worldwide through a global network of distributors. It has been designed to offer a robust and easy-to-use air quality monitoring system that can deliver localised real-time readings; thus improving the accuracy and scope of gathering air quality data to support initiatives that reduce air pollution and its risk to human health.

Read the manual (PDF)

Related publication

Ottosen, T.B., Kumar, P., 2019. Outlier detection and gap filling methodologies for low-cost air quality measurements. Environmental Science: Processes and Impacts 21, 701-713.

iSCAPE sensors

Smart Citizen Kit

The Smart Citizen Kit is the core of what we call the Smart Citizen System: a complete set of modular hardware components aiming to provide tools for environmental monitoring, ranging from citizen science and educational activities to more advanced scientific research.

The system is based on the principle of reproducibility, and integrates non-hardware components such as a dedicated storage platform and a sensor analysis framework. The Smart Citizen Kit's new sensors generation measures air temperature, relative humidity, noise level, ambient light, barometric pressure and particulate matter (PM).

Smart Citizen Station

The Smart Citizen Station was born with the idea to provide the iSCAPE Living Labs with a system for monitoring the performance of their interventions. The Station aims at providing a solution that can be used by the Living Labs not just from a scientific point of view but also as a tool to engage local communities on air pollution-related issues.

The station is designed with a modular principle where sensors can be added easily expanding the capabilities of the installation or replaced when they are damaged or the sensor's lifetime is over. From a cost perspective, while being more expensive than the Smart Citizen Kit, it is also perceived as a low-cost solution.

The design builds on the Smart Citizen Kit concept by adding an extra set of more accurate sensors especially aimed at measuring air pollutants. The sensors include:

  • Gas Sensor Board, featuring EC Carbon Monoxide
  • Nitrogen Dioxide and Ozone sensors
  • PM Sensor Board, featuring a PM2.5/PM10 sensor.

Documents

Read more about the Smart Citizen Kit and Living Lab Station.

Recent publications

Kumar, P., Omidvarborna, H., Pilla, F. and Lewin, N., 2020. A primary school driven initiative to influence commuting style for dropping-off and picking-up of pupils. Science of the Total Environment, 138360.

Mahajan, S. and Kumar, P., 2020. Evaluation of low-cost sensors for quantitative personal exposure monitoring. Sustainable Cities and Society 57, 102076.

Mahajan, S. and Kumar, P., 2019. Sense Your Data: Sensor Toolbox Manual, Version 1.0.

Mahajan, S., Kumar, P., Pinto, J.A., Riccetti, A., Schaaf, K., Camprodon, G., Smári, V., Passani, A. and Forino, G., 2020. A citizen science approach for enhancing public understanding of air pollution. Sustainable Cities and Society 52, 101800.

Ottosen, T.B. and Kumar, P., 2020. The influence of the vegetation cycle on the mitigation of air pollution by a deciduous roadside hedge. Sustainable Cities and Society 53, 101919.

The Air Sampling Pump is the ultimate in high flow sampling providing high flows and long run times of a vacuum-style pump in a compact, portable and battery-operated sampler.

The instrument has the following features:

  • Ideal for 24-hour indoor air monitoring or unattended ambient air sampling
  • High flows and long run times with low operational noise
  • Advanced compensated flow control.

Read the technical manual (PDF)

Relative humidity generator

The Relative Humidity Generator (Model RH-200) is a fully automated, compact, portable bench-top instrument, which supplies specified constant air or nitrogen flow rates with precision-controlled relative humidity.

The generator is designed to easily integrate with the Envilution(R) chamber. It is easy to install and includes a Heated Transfer Line with adjustable temperature control to eliminate condensation between the generator and the chamber.

PAR and LAI monitor

The ACCUPAR (model LP-80) is a lightweight, portable, linear photosynthetically active radiation (PAR) sensor. It allows the measurement of canopy PAR interception and calculation of leaf area index (LAI) at any location within a plant or forest canopy.

The ACCUPAR weighs a little over 0.5 kg. The attached controller, powered by four AAA batteries, can be used to take measurements manually or can log data unattended for short periods of time. It stores 1 MB of data (over 2000 readings) for later download and analysis. The external PAR sensor can be used to make simultaneous above- and below-canopy PAR measurements. Using both the external sensor and the ACCUPAR together allows accurate PAR and LAI data to be collected in clear, partly cloudy, or overcast sky conditions.

Read the manual (PDF)

Recent publications

Ottosen, T.B. and Kumar, P., 2020. The influence of the vegetation cycle on the mitigation of air pollution by a deciduous roadside hedge. Sustainable Cities and Society 53, 101919.

Abhijith, K.V. and Kumar, P., 2020. Quantifying particulate matter reduction and their deposition on the leaves of green infrastructure. Environmental Pollution 265, 114884.

Abhijith, K.V. and Kumar, P., 2019. Field investigations for evaluating green infrastructure effects on air quality in open-road conditions. Atmospheric Environment 201, 132-147.

Leaf porometer

The Leaf Porometer is a battery-operated, menu-driven device that measures stomatal conductance of leaves. Stomatal conductance is a function of the density, size, and degree of opening, of leaf stomata.

The Leaf Porometer measures stomatal conductance by putting the conductance of a leaf in series with two known conductance elements, and comparing the humidity measurements between them.

It can display information in three selectable units:

  • Millimoles per metre squared seconds
  • Metres squared seconds per mole
  • Seconds per metre.

Stomatal conductance can be used to evaluate plant water use, quantify water stress and compare physiological responses of different plant species. The main features include:

  • Conductance Range: 0 to 1000 mmol m-2 s-1
  • Accuracy: ±10%
  • Operating Environment: 5 to 40 °C, 0 to 100% RH, non-condensing
  • Units: mmol m-2s-1, m2/s mol-1, s/m
  • Sample Chamber Aperture: 6.3 mm
  • Sensor Head Cable Length: 1.2 m
  • Measurement Time: 30s in auto mode
  • Power: Four AA alkaline batteries
  • Data storage: 4,095 measurement in flash memory.

Read the manual (PDF)

The all-in-one meteorological sensor (ClimaVUE™50) fulfils the common weather monitoring needs with simplicity when paired with any of Campbell Scientific's highly flexible and scalable data collection platforms.

This sensor uses SDI-12 to report air temperature, relative humidity, vapour pressure, baro­metric pressure, wind (speed, gust, and direction), solar radiation, precipitation, and lightning strike (count and distance). It does this with no moving parts and consumes little power. A built-in tilt sensor assures long-term data integrity.

This diverse product is great for quick deployment, for remote locations, for large networks, as part of a more complex system, or if just a simple instrument is required.

Read the manual (PDF)

Weather meter

This portable weather meter (Kestrel 5500) is highly accurate and reliable. It measures every environmental condition (e.g. temperature and relative humidity) plus wind direction, crosswind and headwind/tailwind. This mini weather station is drop-proof, dust-proof, water-proof and able to withstand extreme environments without damage.

Read the user guide

This data logger uses wireless communication between monitoring locations and the logger, and between the logger and the internet. The logger 'pushes' data to the web servers so that users are able to view live data 24/7.

Building on the success of its predecessor, this second generation data logger is now available, taking data capture and network management to a new level. It offers up to 255 channels of data, each one of which can be specified with a different communication frequency and data averaging rate. The capacity of the memory has been increased to 2GB on a micro SD card providing years of on-board data backup.

In addition to pulse and analog, the logger is now able to accept inputs from sensors and analysers in a wide variety of communication methods including SDI12, RS232, RS485, Ethernet, USB, and WiFi. XBee radio nodes plus longer range radio frequencies are also now supported and new cellular modem options include faster 3G and an optional GPS locator.

Typical applications for the Logger include those for which live access to field data is required for example, monitoring of air quality, traffic, water, noise, process, and weather.

Digital ultrasonic cleaner

The digital ultrasonic cleaner has the following features:

  • 6L capacity tank for professional cleaning
  • 180W power and 40KHz strengthened transducer makes the ultrasonic more powerful
  • Timing Function: 1-30 minutes adjustable.

The ultrasonic cleaner could be used with water/solvents to wash and clean loosely adhering particles attached to the air quality instrument parts.

Steriliser

The Memmert steriliser SF55 with forced air circulation (with 1 grid 53L) complies with all relevant standards and regulations for medical products and guarantees reliable program sequences irrespective of the load and chamber volume.

The steriliser has the following features:

  • Temperature range up to +250 °C
  • Forced air circulation.

The steriliser has a wide range of applications in environmental research as well as industrial quality testing, especially for keeping filter papers before and after sampling at certain temperatures.

Read the manual (PDF)

The thermocouple (VA8060) is a powerful thermometer that accepts input of K and J type thermocouples. This economical type K and J thermocouple thermometer provides accurate and reliable temperature measurement in an economic and compact design.

Benchtop muffle furnace

The Benchtop Muffle Furnace has the capability to heat up quickly and is energy efficient, which is ideal for ashing most types of organic and inorganic samples, heat treating of small steel parts, performing ignition tests, conducting gravimetric analysis and for the determination of volatile and suspended solids.

The muffle furnace also has the following features:

  • Digital single setpoint temperature control up to 1100°C
  • Single display system to show actual temperature/setpoint
  • Ceramic fibre insulation to permit faster heat up and reduce energy consumption
  • Embedded heating element on top and both sides to improve temperature uniformity
  • Drop-down door for loading and unloading plus door safety switch
  • Thermocouple break protection to prevent failure in runaway conditions
  • 0.95cm (0.38in.) diameter port in the chamber rear for monitoring temperatures with independent measuring devices.

Read the manual (PDF)

The actigraphy watch (MotionWatch 8) is used for the monitoring of sleep, circadian rhythm and physical activity.

Trusted by clinical and research professionals around the world, this watch is one of the solutions for convenient long-term behavioural monitoring with high patient compliance.

Read the manual (PDF)

The heart rate sensor is used for measuring health conditions of operators during certain experiments and has the following features:

  • New accuracy for measuring heart rate with electronics and algorithms
  • Pro chest strap with one extra electrode to prevent interference
  • The H10 has hours worth of memory to record data without the need of a wrist unit.

High-precision microbalance

With a readability of 0.001 mg, the XPR10 microbalance is capable of handling most basic weighing tasks for different applications like laboratory testing and chemical analysis. The microbalance offers 1 µg of readability with maximum capacity of 10 gr.

Read the microbalances manual (PDF)

Make an enquiry

If you require the use of any of our instruments, or have a question, then please get in touch with us.

Prashant Kumar profile image

Professor Prashant Kumar

Associate Dean (International), Professor and Chair in Air Quality and Health; Founding Director, Global Centre for Clean Air Research (GCARE)

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Global Centre for Clean Air Research
Thomas Telford building
University of Surrey
Guildford
Surrey
GU2 7XH