Casell CEL - 712 Microdust Pro

Casella CEL-712 Microdust Pronew sign


Offering major ease-of-use benefits, this rugged, hand-held, data logging instrument has been specially designed for reliable real-time detection of airborne dusts, fumes and aerosols across a plethora of industries.

Suitable for occupational health, industrial process and site boundary monitoring, as well as testing air filtration efficiency and environmental measurement and research activities, the Microdust Pro is ideal for use in harsh environments such as construction and demolition sites, oil & gas plants, or mines and quarries.

It can also be used for conducting spot checks and walk-through surveys of ambient and indoor workplace facilities including pharmaceutical and chemical processing factories. Featuring a large colour screen with graphical display, the high performance device provides immediate details of when and where excessive dust levels are occurring.

Whilst the Microdust Pro comes factory calibrated to internationally recognised ‘standard’ dust, by using an optional TUFF Air Sampling Pump and gravimetric adaptor, user-defined dust-type settings may be obtained. This means that the user can calculate a correction factor for the actual type of dust being measured and ensures maximum accuracy for the application.

 Further benefits of the Microdust Pro include its ease-of-use. An operator can take a measurement within three simple steps after switching the instrument on. Plus it features a large memory capable of up to 500 measurements, which can be downloaded into Casella Insight Data Management Software, where it can be stored and analysed as necessary. This analysis is avalible via the safety office once your measurements have been taken.

Draeger CMS Analyser

Draeger CMS analyser


The Dräeger Chip Measurement System (CMS) is an electronic colorimetric grab sampling system which uses chemical-specific ‘chips’ and an electronic analyzer for accurate, reliable gas and vapour measurements.

Each chip contains 10 test capillaries filled with substance-specific reagent. The barcode on the chip is read by the analyzer to obtain information such as gas type, measuring range, and required measuring time.

The results appear on an easy-to-read LCD, with a fast response and results in about 20 seconds. No calibration gas is required as the calibration information is stored on each chip, and the analyser is ready for instant use. Each chip is calibrated during manufacturing and is valid for two years. CMS chips are interchangeable and the analyser requires no recalibration.

Minimal training is required.

Further information on the CMS and the available chips may be found at:

Draeger Cumulus Smoke Generator

Draegar Cumulus smoke generator

The Draeger Cumulus produces a harmless ‘smoke’ cloud with the same density as air, allowing air currents to be visualised. It can be used for checking ventilation or air conditioning systems, chimneys or to detect leaks in equipment.

Knowledge of air movement is also useful when investigating workplace contaminants and taking measurements.

Cumulus contains a unit for the production of the cloud and an ampoule containing a harmless ‘smoke’ generating fluid. A small heating element in the head of the instrument heats the fluid which condenses on contact with air. Small, single clouds can be generated with a short press of a button. Continuous production of ‘smoke’ is achieved by locking in the "on" position. The fluid ampoule is located in the handle of the instrument and can be inserted easily into position. Each ampoule generates approximately three minutes of smoke.

Draeger Multi-Gas Monitor

Draeger multi-gas monitor


The Draeger X-am 5000 is a multi-gas monitor, developed for continuous personal monitoring applications.

The base instrument can be fitted with from 1 to 5 different gas detectors which measure combustible gases /vapours, as well as O2 and harmful concentrations of other gases such as Cl2, CO, CO2, H2, H2S, HCN, NH3, NO, NO2, PH3, SO2 and organic vapours, depending on which detector(s ) have been selected.

This unit has been fitted with detectors for the following gases: oxygen (O2), carbon Monoxide (CO), hydrogen sulphide (H2S) and organic vapours (EO).

Coupled with the Draeger X-am 1/2/5000 remote sampling pump, the instrument is effective for monitoring confined spaces prior to entry.

The instrument is powered by two "AA" alkaline batteries or a rechargeable NiMHy battery, and can provide continuous monitoring for more than 12 hours. When not in use the main unit must remain on charge.

Jerome J405 Mercury Monitor

Jerome J405 Mercury Monitor


The Jerome J405 portable mercury vapour monitor is a newer instrument for mercury spill detection and clean-up analysis.

The J405 uses an alternative technology to detect mercury vapour. The J405 unit has lower detection capabilities (0.5 µg/m3), with a large digital display. The unit will auto zero and regenerate the mercury sensor, as required, for simple operation ‘in the field’.

The unit also has the capacity for on-board data logging (up to 20.000 data points), if required, and reporting capability. The programming is menu driven with USB data communications and SCADA compatibility via 4-20 ma output for data retrieval, storage and reporting.

However, the unit is also designed for simple, single handed, one-button operation and prompt detection of mercury vapour via the digital readout.

MVI Mercury Monitor

MVI Mercury Monitor

The MVI portable mercury vapour detector is a useful survey unit for rapid and accurate mercury detection. It may be used to detect hidden mercury deposits, for example during ‘change of use’ refurbishment, or to determine the adequacy of a clean-up operation following a mercury spill.

It has an ergonomic design for simple, one handed operation and a high-performance pump which will detect even very low concentrations of mercury. You do not need to know where mercury is before measuring, the MVI will detect the contamination and measure it quickly and accurately.

The instrument has an audible alarm and large digital display to clearly indicate the levels of mercury present. The unit provides continuous readings and offers two detection ranges: 0.1 to 200 and 1.0 to 1999 microgram/cubic metre.

MVI does not saturate or need regenerating between readings. It is fast and accurate, and gives a real-time response.

Testo Air Quality Monitor

Testo Air Quality Monitor

The Testo 435 is a compact, multifunction instrument capable of measuring temperature, humidity and air flow rate. It may be used to help assess the quality of room air, measuring room ‘climate’, as well as regulating and inspecting ventilation and air-conditioning installations, although there are other applications.

The mains unit has a number of plug in probes, which must be connected to the instrument before switching it on so that they may be recognised. The unit will automatically display the appropriate test results for the selected probe.

There are two air flow probes which users may find particularly useful, i.e. the hot wire and vane anemometers, which may be used for checking face velocity readings on fume cupboards or extract velocities on extraction equipment, for example.

Available for general loan. Please contact the Safety Office

TSI Ultrafine Particle Counter

TSI Ultrafine Particle Counter


The P-Trak® Ultrafine Particle Counter is an instrument measuring workplace ultrafine particulate levels, and may help identify indoor air quality problems. Ultrafine particles are defined as having a diameter less than 0.1 μm (or 100 nm).

The instrument detects and counts ultrafine particles that can accompany or signal the presence of a pollutant that may be the root cause of air quality complaints.  Causes may be the by-products of combustion and other chemical reactions, and the P-Trak may be able to locate obvious pollutant sources such as boilers, furnaces, and vehicles, as well as not-so-obvious sources as photocopy machines and printers. It can be used to detect the migration of toxic exhaust gases, malfunctioning office equipment, pinhole gasket leaks in boilers and a variety of other problems.

Engineered nanoparticles (nanomaterials) are a subset of ultrafine particles (dimensions from 1 to 100 nm). Nanomaterials are produced and used for industrial and high-tech applications. The occupational health risks associated with manufacturing and using nanomaterials are still not clearly understood. The P-Trak can provide direct, real-time measurement of these ultrafine particulate levels in the workplace.