Sensor Assembly - OI-6900
The Otis Instruments, Inc. Gen II OI-6900 ambient air gas sensor assembly is a WireFree gas sensor assembly that uses an Electrochemical or Infrared sensor element to detect a variety of gases.
The OI-6900 is self-contained and battery operated. The sensor functions by transmission of radio wave messages to the OI-7010 (or any Otis receiving controller) every minute when there is no gas present, and every five seconds when gas is present (and above the background gas level setting). The device is field adjustable for background gas, and addressable to eliminate interference from other systems. Since each system's address is field adjustable, any OI-6900 sensor may be used as a replacement.