Autonics PR18-5AO Inductive Proximity Sensor

Autonics PR18-5AO is an 18 mm diameter cylindrical inductive proximity sensor (PR18 series) designed to detect metal targets at close range in automation systems. It operates from an AC power supply in the 100-240 VAC range (50/60 Hz) with an operating voltage window of about 85-264 VAC, enabling easy integration into standard control circuits. The unit features a two-wire, pre-wired connection with a normally open (SPST-NO) output, suitable for simple control schemes. Its sensing distance is specified from 0 to 5 mm, depending on target material and mounting, and its M18 body geometry allows straightforward installation in common sensor brackets. Typical applications include end-of-travel sensing on conveyors, metal-part presence detection in stamping or packaging lines, and general automation tasks where non-contact metal detection is required. The PR18-5AO is part of Autonics’ cylindrical proximity sensor lineup, offering reliable metal detection across AC-powered environments in a compact form factor suitable for tight spaces and easy retrofits in existing automation setups.