OI-5900 Explosion Proof Wire Powered 4-20 mA State Transmitter


The OI-5900 is a WireFree state transmitter to be used in conjunction with ANY 4-20mA output sensor–such as flame, temperature, pressure, or tank level–via 4-20mA signal.

The OI-5900 is compatible with Otis Instruments’ Gen II WireFree product line.  Using a monitor such as the OI-7010 or OI-7032 allows the unit to utilize relays and Modbus out.

Part Number Formula: OI-5950-[Radio Frequency]-X-O


Part Number: N/A Categories: , Tags: , ,



Operating Voltage: 12-35 Volts DC

Sensor Type: Any sensor or device with a 4-20mA output

Radio Options: 2.4 GHz ISM, 100 mW 900 MHz 200 mW

Unit Address: 1-52 networks (1-78 for 2.4 GHz); 1-255 addresses per network

Power Consumption: Nominal: 50mA @ 12 VDC in a static condition

Radio Transmission: Every 1 minute with no change from sensor Every 5 seconds with change from sensor

Display: Graphical LCD, sunlight readable (transflective), LED Backlight, 102×64 resolution

Certifications: CSA certified Class I, Div I, Groups C and D ATEX certified Ex d IIB, Zone 1 Aex d IIb

Warranty: One year (limited)


OI-5900 Data Sheet

OI-5900 Operation Manual


Your Details

Let us know how to get back to you.

How can we help?

Feel free to ask a question about the specific product.

Part NumberDescription
OI-5900-CB-PCAOI-5900 Control Board with LCD Screen Installed
OI-LCD-102LCD Screen with White LED Backlight
OI-5900-FP-KITOI-5900 Faceplate Kit with Faceplate, Label (2) Thumbscrews, and Foam to secure LCD Screen
OI-5900-RB-PCAOI-5900 Radio Board, No Radio Module Installed
OI-RADIO-2.4-THGEN II 2.4 GHz Radio Module
OI-RADIO-900-LAIRDGEN II 900 MHz Radio Module
OI-432-UFL-4u.FL Cable for Connecting Radio Module to Board
OI-AN-2.4-RIGID-R2.4 GHz Antenna, Non-Flexible, Right Angle
OI-AN-900-FLEX-R900 MHz Antenna, Flexible, Right Angle
OI-420Otis Magnet
OI-402-5PACKPackage of 5 Desiccant Bags, 6 Grams per Bag
OI-496-OMain Enclosure O-Ring

Additional information

Radio Configuration

Gen II 900 MHz Radio, Gen II 2.4 GHz Radio

Featured Products

what we've got in store for you