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RS232Relay - A Serial Relay Interface

RS232Relay provides an easy to use interconnection between your Personal Computer (PC) and switched devices. The relays used on RS232Relay can be connected to almost any load to perform “real-world” functions.

RS232 Relay with Optional Case

Features of the RS232Relay include;

  • 4 dry contact relay outputs, each with a Form C contact, that is, a normally open and a normally closed contact, each capable of handling 100 Volts DC at up to 1.25 Amperes, or 120 Volts AC at 0.5 Amperes.

  • Capable of Momentary, Pulsed or steady-state operation of the relays

  • Momentary operation is useable from 1 second to 99 minutes

  • On board LED’s to show the state of the relays.

  • Interfaces directly to your PC via a spare RS232 serial port, or via any RS232 to USB converter

  • Power input of 12 Volts AC or DC at 350 mA

Download the Instruction Manual from here.

Ordering Information


RS232Relay Basic (no case) $44.95


RSR232Relay with Case $59.95



Last Updated January 20, 2022

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