Gas detection since 1983, wireless gas detection since 2005

The Otis Instruments, Inc. Model OI-675 Electrochemical Sensor Assembly is a versatile system with the ability to detect of a variety of gases.

The OI-675 Electrochemical Sensor Assembly'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, Groups 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-675 incorporates any “4” Series Electrochemical Sensor and the OI-352 two-wire loop (4 to 20mA output) Amplifier Card.

An extended life-expectancy, paired with the ability to withstand extreme climatic conditions and harsh environments, make the OI-675 Electrochemical Sensor Assembly a flexible tool for gas detection.

For a complete list of spare/replacement parts for this product, click on the "Spare Parts" link located under OI-675 on the left sidebar of this page.