Gas detection since 1983, wireless gas detection since 2005

The Otis Instruments, Inc. Model OI-147 Infrared Combustible or CO2 Gas Sensor Assembly is proven to offer reliable gas detection in hostile environments.

The device's key feature is non-intrusive calibration. With all adjustments made at the sensor assembly, one-man non-intrusive calibration is quick, easy, and allows the device to remain Class I, Division 1, Group C and D certified while in the field. Non-intrusive calibration is made possible by using an Otis Instruments, Inc. distributed magnet to activate the MENU, ADD and SUB buttons.

The OI-147 uses the time-proven OI-140-HS Infrared Sensor in the Otis CSA Certified stainless steal housing. The sensor assembly also includes the innovative OI-324 sensor amplifier/transmitter card that is designed to detect gas in hostile environments.

The OI-147 Infrared Combustible or CO2 Gas Sensor Assembly is cost efficient and simple to operate. When paired with its dependability, these features make the OI-147 Sensor Assembly a smart choice for any Combustible or CO2 Gas application.

For a complete list of spare/replacement parts for this product, click on the "Spare Parts" link located under OI-147 on the left sidebar of this page.