Online and Portable Gas Detectors

Leading providers of Analytical Sensors and Monitoring Solutions for Gas applications

Gas Monitoring

Portable and Analyzer based Toxic and hazardous gas detection products for over 60 gases and vapours, providing the latest smart, digital technology for fixed, portable and bespoke solutions. Some of the gases that can be monitored are Acid Gases, Ammonia, Carbon Dioxide, Chlorine, Chlorine Dioxide, Formaldehyde, Hydrogen Chloride, Hydrogen Cyanide, Hydrogen Fluoride, Hydrogen Peroxide, Hydrogen Sulfide, Oxygen, Ozone, Peracetic Acid and Sulfur Dioxide.

Other Toxic and Combustible gases that can be monitored include Acetic Acid, Acetylene, Alcohol, Arsine, Bromine, Carbon Monoxide, Diborane, Dimethylamine, Ethylene Oxide, Fluorine, Germane, Hydrocarbon, Hydrogen, Hydrogen Bromide, Hydrogen Cyanide, Hydrogen Selenide, Iodine, Methane, Nitrogen Dioxide, Nitric Oxide, NOX, Oxides of Nitrogen, Phosgene, Phosphine, Silane.

Our expertise in sensor design and manufacture allows us to deliver the highest level of protection for people and processes under the most extreme conditions.

From portable, hand-held devices to bespoke, smart, multi-gas fixed detection systems, ATi can monitor over 60 different gases, allowing customers to prove efficacy and ensure a safe and healthy environment.

Our gas detectors featuring our pioneering AutoTest module are transforming the industry. This patented design automatically tests itself daily with self-generated gas, making our monitoring range amongst the safest in the world.

Advanced smart sensor technology

Each of the smart sensor modules is a sensor, amplifier and memory module in one compact package. Sensor modules can be calibrated independently and simply plugged into any of our smart detectors for immediate use. When installed in a gas detector, calibration data is loaded into the microprocessor so that no adjustments are needed. The result is a gas detector that can go from measuring anything from phosgene to ammonia in less than one minute.


ATi is the only manufacturer in the world that offers the pioneering and exclusive AutoTest feature. Fitted to our F12 and D12 gas detection solutions*, the patented design automatically checks itself daily with self-generated gas, allowing for safer and more confident monitoring – far exceeding all health and safety regulations. This unique feature is designed to detect and monitor potentially hazardous toxic and flammable gas leaks, ensuring the safest possible working environment. It provides an early-warning alarm if gas escapes, allowing for timely remedial or protective actions to be undertaken.