5123114010 Schneider STP100-400 Submerged Temperature Sensor 400mm 1.8k Nickel 3-Wire Pipe Probe 2m Lead

The Schneider Electric STP100-400 Submerged Temperature Sensor is a rugged stainless-steel sensing element designed to monitor thermal conditions of water in pipes, tanks, and hydronic distribution loops. The slender probe inserts through welded pockets or directly into the medium, converting heat into resistance values for controller interpretation in chiller staging, boiler sequencing, or domestic hot-water regulation.

Featuring a potted, moisture-resistant body and sturdy cable gland, the sensor maintains dry electrical connections even in condensation-prone plant rooms and during wash-down routines. As a purely passive device requiring no auxiliary supply, it simplifies wiring in congested mechanical spaces and eliminates common retrofit failure points. Each unit is factory-checked against traceable references, supporting BMS commissioning reports and energy-audit documentation.

The 400 mm version, the longest stem in the series, addresses deep-mounting challenges in tanks with heavy external insulation or legacy pipework originally drilled for oversized probes. It maintains stable measurements where shorter sensors would only read surface conditions, ensuring accurate thermal monitoring in demanding industrial environments.