SenseAir® S8-4B

SenseAir® S8-4B is a miniature low power LNE approved safety switch. SenseAir® S8-4B main application area is to serve as a CO2 safety switch when built into equipment such as kerosene heaters and other equipment generating potential hazardous levels of CO2 gas. Because of low current consumption the sensor is suitable for battery applications and has an average current consumption of 2 mA.


Key Benefits

-LNE approved

-Miniature size

-Low power consumption

-Individually calibrated




SenseAir® S8 can be customized for a variety of alarm and control applications.



Standard Specification
Operating Principle Non-dispersive infrared (NDIR)
Measured gas Carbon dioxide (CO2)
Measurement range CO2 0.04 to 3,2% volume CO2
Accuracy ±1000ppm (at alarm points between 7000 and 9000 ppm)
Dimensions 60.5 mm x 20 mm x 8.5 mm
Maintenance Forced calibration Maintenance-free
Life Expectancy > 5 years in normal indoor / office environments
Operation temperature range -5 to 60 °C
Operation humidity range 0 to 95% RH (non-condensing)
Power supply 5 to 7.0 V DCV
Power Consumtion 250 mA peak, 2 mA average
Alarm output (open collector) Open >8000 ppm, closed <6500 ppm
 Product Additional features
S8 PWM 0-5000
S8 PWM 350-10000
SenseAir® S8-4B



Accessories        Product       Additional features
00-0-0102   SADK S8-4B
The SenseAir Development Kit is a configuration and test utility to assist you in your work with our product.