Festo SMTSO-8E-PS-M12-LED-24 T-Slot Proximity Sensor, PNP NO

The Festo SMTSO-8E-PS-M12-LED-24 is a magneto-inductive proximity sensor designed specifically for T-slot cylinder mounting — the kind you find on pneumatic actuators across assembly lines, packaging machines, and material handling stations. It senses the piston position through the cylinder wall, so no mechanical contact, no wear. Runs on 10-30 V DC and switches PNP normally open, which is the standard for most PLC input cards. The M12 connector means you can pre-terminate cables and swap the sensor in minutes — no hardwiring into the cylinder. Rated for 200 mA, enough to drive a small relay or indicator directly. Operating range from -25 to 70°C covers the typical factory floor, including unheated warehouses or near oven zones. The repetition accuracy of 200 mm is the sensor's ability to hit the same switch point consistently — for a T-slot sensor, that's the spec that matters for repeatable cylinder stroke detection.