OI-6000 Non-Explosion Proof Wire Powered Sensor Assembly


The Otis Instruments OI-6000 Series Ambient Air Toxic Gas Detector is a versatile assembly that uses an electrochemical, infrared or PID sensor element to detect a variety of gases. Wired power (12 to 35 VDC) with 4-20 mA analog and RS-485 Modbus outputs. Magnetic switches allow for non-intrusive calibration while in the field as well as full system settings and diagnostics.

Part Number Formula: OI-6000-[Sensor Type]-[Gas Type]-S





Sensor Type: Electrochemical, Infrared, Photo Ionization Detector

Power Voltage: Wired Power (3-Wire) 12 to 35 VDC

Power Draw: 2 Watts Maximum


  • Power Electromagnetic Interference (EMI) Filter

  • 4-20 mA Surge Suppression

  • RS-485 Surge Suppression

Display Screen:

  • 102×64 Resolution Graphical LCD Screen

  • Transflective (Sunlight Readable) with white LED Backlight


  • 3 Push-Buttons (MENU, ADD, and SUB)

  • 3 Magnetic Non-Intrusive Switches for Calibration (MENU, ADD and SUB)

Customizable Settings:

  • 2 Individually-Configurable Alarm LED Set-Points

  • Optional 2 Dry-Contact Relays with Replaceable 4 Amp Fuses

Tamb Temperature Range: -20°C to +54°C / -4°F to 130°F

Wired (Analog) Output: 4-20 mA (3-Wire) – Fault Terminal

(Digital) Output:

  • RS-485 Modbus

  • GEN II 900 MHz or GEN II 2.4 GHz Radio WireFree Output

Product Dimensions: 7.6″ L x 5.1″ W x 5.4″ H (15.76” L Maximum w/ Antenna) Total Weight 5 lbs.

Hardware Warranty: Limited one year

Sensor Element Warranty: Varies with Gas Type


OI-6000-EC-X-S Data Sheet

OI-6000-X-X-S Operation Manual



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Additional information

Sensor Type


Gas Type

H2S, CO, O2, H2S2K, HCL, HCN, NH3, NH3300, NH3A, NO2, SO2, CO2, LEL, CL2, PH3, VOC10, VOC20, VOC50, VOC1K, VOC2K, CH2O

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