Sensidyne Gas Detection

SensAir Point Gas Detector

SensAir Combustible, Toxic Gas, and Oxygen Point Gas Detection Monitor

SensAir Point Gas Detector
  • Combustible, Toxic, and Oxygen Versions Available

  • U.S./Canada/IECEx/ATEX Hazardous Area Approved

  • Rugged, Industrial, Cost Effective Design Meets a Wide Range of Application and Project Requirements

  • Robust, Fast Responding Sensors

  • Bright LED Display Model or Lower Cost Blind Model

  • Non-Intrusive Zero & Span Adjustments

  • Easy Installation and Maintenance, Ideal for Retrofit or New Applications

  • 3-wire Design with 4-20mA Output, Options for Modbus or BACnet—Both include 3 Additional Relays

  • Horizontal or Vertical Installation

  • Remote Combustible Sensor Option

  • Field Replaceable Sensor


SensAir is an industrial grade, cost effective, fixed point gas detector designed to meet a wide range of industrial and commercial applications providing ambient gas monitoring for safety applications. SensAir is available in models for detecting toxic gas, combustible gas, and oxygen deficiency. Now available in stainless steel.

  • Rugged, Cost Effective, Industrial Design Meeting a Wide Range of Application and Project Requirements

  • Factory Mutual (FM) and CSA Certified for Hazardous Classified Area Installation in Division 1 & Division 2 and ATEX / IECEx Zone 1 & Zone 2

  • Available in Aluminum and 316 Stainless Steel Enclosure

  • Explosion Proof 316 Stainless Steel Sensor Housing

  • Robust, Poison Resistant Catalytic Bead Sensor with Rapid Response

  • Remote Sensor Option

  • On-Board Bright LED Display

  • Non-Intrusive Zero & Span Adjustments

  • Easy Installation and Maintenance in Retrofit or New Applications

  • 3-wire Design with 4-20mA Output

  • Horizontal or Vertical Installation

SensAirCMB is a heavy duty combustible point gas detector designed to be poison resistant. Sulfides and Silicons are known to poison or inhibit standard catalytic bead sensors at concentrations as low as one part per million (1 PPM). Poisoned catalytic bead sensors are rendered ineffective and unable to detect gas. Advanced sensor technology used in SensAirCMB significantly reduces the effects of poisoning, thereby minimizing the replacement of sensors and costs of ownership, making this product the ideal gas detector for chemical and hydrocarbon processing and manufacturing facilities.

The advanced SensAirCMB catalytic bead sensor employs a pair of pellistors (catalytic beads) that provide uniform electrical resistance in clean air. An active pellistor “catalyzes” combustible gas when present while a reference pellistor compensates for changes in ambient environmental conditions. The difference provides an output that is accurate and linear. This advanced design provides excellent combustible gas sensitivity, rapid response, and extended sensor life.

SensAirCMB is housed in a rugged explosion-proof aluminum enclosure with variable mounting orientation options. The 316 stainless steel sensor housing provides excellent versatility for mounting SensAirCMB. A three-wire, 4-20mA output enables easy installation in retrofit or new applications with interface to common facility communication links. The instrument has an LED display and non-intrusive user interface for easy maintenance and setup.

  • Rugged, Cost Effective, Industrial Design, Meeting a Wide Range of Application and Project Requirements 

  • CSA Certified for Hazardous Classified Area Installation in Division 1 & Division 2 and ATEX/ IECEx Zone 1 & Zone 2

  • Aluminum, Stainless-Steel and Polymeric Enclosure and Sensor Holder Options

  • Robust, Fast Response Electrochemical Sensors 

  • Bright LED Display or Blind Models 

  • Non-Intrusive Zero & Span Adjustments

  • Easy Installation and Maintenance Ideal for Retrofit or New Applications 

  • 3-wire Design with 4-20mA Output; Options for Modbus and BACnet — Both Include 3 Additional Relays

  • Horizontal or Vertical Installation 

SensAir Sensors Options
Ammonia (NH3) 50ppm
Ammonia (NH3) 100ppm
Ammonia (NH3) 300ppm
Ammonia (NH3) 100ppm (Low Temp)
Ammonia (NH3) 300ppm (Low Temp)
Carbon Monoxide (CO) 500ppm
Carbon Monoxide (CO) 100ppm
Carbon Monoxide (CO) 250ppm
Carbon Monoxide (CO) 1000ppm
Chlorine (Cl2) 5ppm
Chlorine (Cl2) 10 ppm
Chlorine Dioxide (ClO2) 5ppm
Hydrogen (H2) 1000ppm
Hydrogen Chloride (HCl) 10ppm
Hydrogen Chloride (HCl) 100ppm
Hydrogen Cyanide (HCN) 20ppm
Hydrogen Fluoride (HF) 10ppm
Hydrogen Sulfide (H2S) 50ppm
Hydrogen Sulfide (H2S) 100ppm
Nitrogen Dioxide (NO2) 10ppm
Sulfur Dioxide (SO2) 20ppm
Oxygen (O2) with SensAir O2

Effective Toxic Monitoring Solution 
SensAir Toxic provides options for the instrument enclosure, display, and installation orientation. When combined with premium grade gas sensors, this platform becomes a configurable and reliable solution to meet target installation and application requirements. Its feature set and value make SensAir the ultimate solution for OEM, high-volume, and price-sensitive gas detection applications.

SensAir for Toxic Gas Monitoring 
SensAir provides a sensible and easy to use platform for detection of toxic gases and vapors in safety applications. Each SensAir toxic gas detector employs a high-performance, gas sensor for rapid detection of the target gas with availability for many toxic gases and ranges. In addition to the range of toxic gas options, SensAir is also available for oxygen and combustible gas monitoring.


Filename Filesize
/home/asens/public_html/Support Library/gas-detection/SensAir
360-0157-01rD SensAir CMB Gas Transmitter Manual.pdf 1.56 MB
360-0228-01 SensAir Manual.pdf 3.29 MB
SensAir Combustible Sensidyne_LACT-Skid_Gas-Detection.pdf 893.03 kB
SensAir Combustible transmitter Allowable Line Lengths.pdf 136.68 kB
Sensidyne_SensAir-Datasheet_rK1.pdf 2.03 MB


Filename Filesize
/home/asens/public_html/Support Library/gas-detection/SensAir Sensors
SensAir Sensor Datasheets_combined_111519.pdf 244.04 kB



Please contact us for any additional data sheets.