Critical Environment is the leader in gas detection .It can be used in the following applications.

1. Boiler Room: Continuous monitoring of natural gas and carbon monoxide in forced air central heating systems.
2. Commercial Kitchen: Continuous monitoring of natural gas (or propane) and carbon monoxide in a commercial kitchen.
3. Refrigeration Applications: Continuous monitoring of refrigerants in mechanical rooms . Early detection of refrigerant leaks .
4. Indoor Pool Applications: Continuous monitoring of Chlorine and Ozone for indoor swimming pools in recreational facilities or hotels.
5. Enclosed Parking Applications: Continuous monitoring of carbon monoxide and nitrogen dioxide in large parking garages.
6. Greenhouse Applications:Continuous monitoring of ethylene and carbon monoxide in production greenhouses.
7. MRI Room Applications: Continuous monitoring  of oxygen in MRI rooms for hospitals & clinics.
8. Hotel Applications: Continuous monitoring of refrigerant gas leaks from air conditioning units in hotel rooms.
9. Waste Water Treatment Plant Applications: Continuous monitoring of common hazardous gases found in waste water treatment plants.
10. Welding Shop Applications: Continuous monitoring of carbon monoxide and nitrogen dioxide in a welding shop.
11. Ice Arena Applications: Continuous monitoring of ammonia, carbon monoxide, nitrogen dioxide and propane (or methane) in ice rinks.
12. Battery Charging Applications: Continuous monitoring of hydrogen gas at lead acid battery charging stations.
13. Distribution Warehouse Applications: Continuous monitoring of Carbon monoxide and Nitrogen dioxide in distribution warehouses.

The YESAIR is a battery powered, portable air quality detection and data logging instrument designed for intermittent or continuous indoor air quality monitoring.

It is available in two models (Pump or Diffusion). Each can be configured as a multi-channel operation, with a selection of more than 30 different plug and play gas sensors, including a particulate sensor and an optional huge capacity data logging SD memory card. Both models come with one temperature sensor, one relative humidity (RH) sensor, the capacity for 5 internal gas sensors consisting of a maximum of three electrochemical toxic gas or oxygen sensors plus two high current draw sensors such as an infrared, PID, catalytic or particulate sensor.

YES Plus LGA is a multi-gas air quality monitoring and information recording instrument that simultaneously measures and records up to fifteen sensors. With more than 30 different plug and play sensors to select from, users can accurately monitor more within a single, easy to carry instrument.

Featuring a 15 channel sensor capacity including RH and temperature, YES Plus LGA can handle up to 12 additional plug & play sensors consisting of a maximum of 8 electrochemical toxic gas or oxygen sensors, 4 high current draw sensors such as an infrared, PID or catalytic, plus a remote YESDUST particulate sensor.

New particulate sensor options for the YESAIR. Replacing the YESDUST, the PM2.5 or PM10 Particulate Sensor is externally mounted on the YESAIR allowing for easy holding and mobility. The particulate sensor detects smoke, dust, pollen, spores, etc. particle concentrations in air by using an optical sensing method.

Ideal for indoor air quality monitoring, and applications associated with air cleaners and purifiers, air conditioners, HVAC and outdoor dust monitoring.

Sensors Technology:

• Electrochemical: Toxic gas sensors & oxygen sensors. Lifespan is 2 - 5 years (sensor type & manufacturer dependent). Oxygen typically 3 years.
• Catalytic: Combustible gas sensors, toxic gas sensors at very high concentrations (% volume). Lidespan is 3 - 8 years (typically if not poisoned).
• Infrared: Toxic, combustible & refrigerant gas sensors.Lifespan is 10 years +.
• PID / TVOC: Toxic gas sensors, organic compounds & chemical. Lifespan is 3 - 8 years (typically if not contaminated and with regular maintenance).

Gas Sensors: Ammonia (NH3), Arsine (AsH3), Carbon dioxide (CO2), Carbon monoxide (CO), Chlorine (Cl2), Chlorine dioxide (ClO2), Ethylene (C2H4), Ethylene oxide (C2H4O), Fluorine (F2), Formaldehyde (CH2O), Hydrogen (H2), Hydrogen chloride (HCl), Hydrogen cyanide (HCN), Hydrogen fluoride (HF), Hydrogen sulphide (H2S), Methane (CH4), Nitric oxide (NO), Nitrogen dioxide (NO2), Oxygen (O2), Ozone (O3), Phosphine (PH3), Silane (SiH4), Sulphur dioxide (SO2), TVOCs.

YESAIR Sampling Probe

Handheld sampling probe to attach to the YESAIR for sampling areas that are difficult to reach.

YES Plus LGA Sampling Probe

Handheld sampling probe to attach to the YES Plus LGA for sampling areas that are difficult to reach.

A package of items required to save, retrieve and review data logged by the YESAIR or Yes Plus LGA IAQ monitors

Includes a 2GB SD flash card, 6 ft USB cable, USB multi card reader, 512 MB USB thumb drive with the YESViewer Software and the YESViewer Software Manual.

For monitoring: Carbon dioxide, Carbon monoxide, Formaldehyde, TVOCs, Particulates, RH & Temperature, Refrigerants

One or two channel gas detector with an aesthetically pleasing design to reduce noticeability when used in publicly occupied spaces such as hotels and schools ,Office Buildings,Hospitals, Apartment Buildings, Retirement Homes,Theatres/Auditoriums, Schools/Universities/Dormitories  and many more...

For monitoring: Carbon dioxide

Low maintenance Carbon dioxide (CO2) gas detector available in ppm or %vol with Plug & Play Smart Sensor Technology

It can be used in Greenhouses,Wineries,Breweries, Marine Vessels,Fruit Ripening Rooms, CO2 Fire Suppression,CO2 Storage Rooms,CO2 Refrigeration Systems ,Beverage Bottling Facilities

For monitoring: Ammonia, Carbon monoxide, Carbon dioxide, Chlorine, Ethylene, Ethylene oxide, Fluorine, Formaldehyde, Hydrogen, Hydrogen sulphide, Hydrogen chloride, Hydrogen cyanide, Hydrogen fluoride, Nitric oxide, Nitrogen dioxide, Oxygen, Ozone, Phosphine, Silane, Sulfur dioxide, Methane, Propane, Hydrogen, TVOCs, Refrigerants

One or two channel Modbus® or BACnet® gas detector with flexible customization options and Plug & Play Smart Sensor Technology.

Main applications are in Parking Facilities,Vehicle Repair Shops, Ice Arenas, Swimming Pools, Refrigeration Rooms,Chiller Rooms,Battery Charging Rooms ,Manufacturing Plants ,Maintenance Facilities and many more

For monitoring: Methane, Propane, Hydrogen, TVOCs

Single analog remote sensor for flexible location monitoring.

The main aplications are in parking facilities,Parking Facilities ,Vehicle Repair Shops ,Equipment / Machinery Rooms ,Manufacturing Plants ,Food Processing Plants ,Battery Charging Rooms and many more...

For monitoring: Ammonia, Carbon monoxide, Nitrogen dioxide, Chlorine, Ozone or Oxygen

Single channel, analog gas detector for enclosed parking facilities, recreational facilities, oxygen depletion applications

It can  used at  Parking Facilities ,Vehicle Repair Shops ,Manufacturing Plants ,Maintenance Facilities ,Ice Rinks ,Aquatic Facilities ,Chiller Rooms ,Chemical Storage Rooms , Oxygen Depletion and many more...

For monitoring: Ammonia, Carbon monoxide, Chlorine dioxide, Chlorine, Ethylene, Ethylene oxide, Fluorine, Formaldehyde, Hydrogen, Hydrogen sulphide, Hydrogen chloride, Hydrogen cyanide, Hydrogen fluoride, Nitric oxide, Nitrogen dioxide, Oxygen, Ozone, Phosphine, Silane, Sulfur dioxide, Methane, Propane, Hydrogen, TVOCs, Refrigerants

Single channel, analog gas detector with many gas sensor choices

It can be used in Parking Facilities,Vehicle Repair Shops, Arenas and Pools, Refrigeration Rooms, Chiller Rooms, Battery Charging Rooms, Hotels, Airports and many more...

For monitoring: Carbon monoxide, Nitrogen dioxide, Methane, Propane, Hydrogen

3 channel, digital (Modbus®) gas detector for enclosed parking facilities

Main applications are in Parking Facilities ,Vehicle Repair Shops ,Electric Car Charging Stations ,Battery Charging Rooms and many more...

For monitoring: Ammonia, Carbon monoxide, Chlorine dioxide, Chlorine, Ethylene, Ethylene oxide, Fluorine, Formaldehyde, Hydrogen, Hydrogen sulphide, Hydrogen chloride, Hydrogen cyanide, Hydrogen fluoride, Nitric oxide, Nitrogen dioxide, Oxygen, Ozone, Phosphine, Silane, Sulfur dioxide, Methane, Propane, Hydrogen, TVOCs

A full featured, 3 channel, digital (Modbus®) gas detector with many gas sensor choices

Main applications  are in parking facilities, Arenas and Pools ,Chiller Rooms ,Manufacturing Plants ,Maintenance Facilities ,Food Processing Plants and many more...

For monitoring: Ammonia, Carbon monoxide, Chlorine dioxide, Chlorine, Ethylene, Ethylene oxide, Fluorine, Formaldehyde, Hydrogen, Hydrogen sulphide, Hydrogen chloride, Hydrogen cyanide, Hydrogen fluoride, Nitric oxide, Nitrogen dioxide, Oxygen, Ozone, Phosphine, Silane, Sulfur dioxide, Methane, Propane, Hydrogen, TVOCs

A full featured, 3 channel, digital (BACnet®) gas detector with many gas sensor choices, intended to be used alone or integrated into an existing BACnet® network

It can be used in Parking Facilities ,Arenas and Pools, Chiller Rooms, Manufacturing Plants, Maintenance Facilities, Food Processing Plants, Ice Cleaning Machine Rooms and many more...

For monitoring: Ammonia, Carbon monoxide, Nitrogen dioxide, Oxygen, Hydrogen sulphide, Sulfur dioxide, Methane, Propane, Hydrogen, Acetylene, Butane, Ethanol, Heptane, Hexane, Isopropyl alcohol, Toluene, Pentane, Ethylene, Diesel fuel vapour

Reliable, accurate monitoring of toxic or combustible gases in potentially explosive and harsh environments, including hazardous-rated areas.

 The main applications are in Industrial / Commercial Buildings,Onshore Oil & Gas Terminals Utilities, Power Plants, Refineries, Chemical Plants. Deep Freezer Rooms, Chiller Rooms and many more...

For monitoring: refrigerants R22, R32, R123, R134A, R404A, R407A, R407C, R407F, R410A, R422A, R422D, R427A, R448A, R449A, R452A, R507, R513A, R514A, HFO1234YF, HFO1234ZE, HFO1233ZD

Single channel, infrared refrigerant gas detector with accurate, low level leak detection, available with analog or Modbus® output

It can be used in Supermarkets/Convenience Stores, Refrigerated Mechanical Rooms, Commercial Chiller Equipment Food Storage/Freezer Rooms, Food Processing Plants and many more...

For monitoring: Carbon dioxide, Hydrocarbons, Methane and jet fuel vapours

Industrial, high quality analog gas detectors with dual beam, miniature infrared gas sensors

It can be used in Commercial Buildings, Institutional Buildings, Waste Water Treatment Plants, Oil & Gas Plants, Manufacturing Plants, and many more...

A simple, economical infrared Carbon dioxide analog gas detector with a 0 - 2,000 ppm measurement range.

Comes in a simple, general purpose wall mount enclosure for installation in the climate zone.

The main applications are in  Residential Buildings ,Commercial Buildings ,Schools / Educational Institutions ,Offices and many more...

Infrared Carbon dioxide analog gas detector with a 0 - 2,000 ppm measurement range for mounting in ventilation ducts.

Comes in a in a water tight, duct style enclosure without a display.

The main applications are in commercial Buildings,Schools / Educational Institutions,Office Buildings and many more...

Infrared Carbon dioxide Modbus® gas detector with a 0 - 2,000 ppm measurement range housed in a water tight, duct style enclosure for mounting in ventilation ducts

Comes with Modbus® output, a display and relay

The main applications are in  Commercial Buildings, Schools / Educational Institutions ,Office Buildings and many more...

8 channel high performance Controller with logic control and priority settings for smaller gas detection applications.

Available with Modbus® or BACnet® communication with BAS, supports 4-20 mA and Modbus® driven VFDs.

The main applications are in smaller Parking Facilities ,Recreation Facilities ,Food Processing Plants ,Cold Storage / Freezer Rooms ,Chemical Storage Rooms and many more...

128 channel high performance Controller with logic control and priority settings for mid to large gas detection applications

Available with Modbus® or BACnet® communication with BAS, supports 4-20 mA and Modbus® driven VFDs

The Main applications are in Large Parking Facilities ,Recreation Facilities ,Food Processing Plants , Cold Storage / Freezer Rooms ,Chemical Storage Rooms and many more...

4 Channel Controller with logic control for small to medium gas detection applications

Available with Modbus® or BACnet® output for communicating with a BAS, DDC or other control panel

It can be used in Large Parking Facilities ,Recreation Facilities ,Food Processing Plants ,Cold Storage / Freezer Rooms, Chemical Storage Rooms and many more...

2 channel dependable self-contained Controller with flexible internal and/or remote sensor configurations

Features LED indicators and one configurable 4-20 mA input; for monitoring: Carbon monoxide, Nitrogen dioxide, Hydrogen, Methane, Propane

The main Applications are in Parking Facilities ,Vehicle Repair Shops ,Battery Charging Rooms ,Buildings on Landfill Sites and many more...

2 channel versatile self-contained Controller with VFD capabilities and flexible internal and/or remote sensor configurations

Features two 4-20 mA outputs and one configurable 4-20 mA input; for monitoring: Carbon monoxide, Nitrogen dioxide, Nitric oxide, Oxygen, Hydrogen sulphide, Ethylene, Sulphur dioxide, Hydrogen, Methane, Propane, TVOCs