OI-7530 Explosion Proof Relayer with Three Relays

OI-7500_7530 - Square

The Gen II WireFree Relayer OI-7530 is a wireless relay/alarm system specifically designed for use in conjunction with the Otis Instruments, Inc. Gen II WireFree Product Line.

The OI-7530 features 3 relays and 3 LEDs, and can monitor up to 32 sensor assemblies via transmissions from an on-board 900MHz or 2.4GHz radio.

The ability to mount the OI-7530 near the entrance of a site allows the technician to immediately determine if it is safe to enter the site, making this device incredibly useful in any environment hosting hazardous gas.  The OI-7530 can be mounted as a traditional or self-contained system that requires 12-35 Volts DC or 120-240 Volts AC.

These key features-and more-make the Gen II WireFree Relayer OI-7530 a reliable and convenient tool that is incredibly useful in any environment hosting hazardous gas.

**Sensor readings are now displayed on screen and Modbus output functionality has been added.

Part Number Formula: OI-7530-[Radio Frequency]-[Power Supply]-A

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Operating Voltage: 12V to 35VDC or 120V AC

Current Draw: 275mA at 24 VDC (monitor only); 6.6 Watts Max

Temperature: -30 to 70° C

Channels: 32 channels


• Three dry-contact with 4 Amp fuses

• Three individually configurable set-points

Radio Options:

• 2.4 GHz ISM, 100mW

• 900 MHz, 200mW

RF Connection: Class I, Div. 1; External N Female connector

Enclosure: Explosion-proof Class I, Div. 1

Warranty: Hardware: One year (Limited)

Power: AC, DC

Radio Configuration: Gen II 900 MHz Radio, Gen II 2.4 GHz Radio

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