S+S REGELTECHNIK 1202-8117-1421-000

In modern HVAC and building‑automation systems, accurate humidity monitoring and control in ductwork or channels is vital—for occupant comfort, mould prevention and efficient system performance. The S+S 1202‑8117‑1421‑000 solves this by providing a tailored channel‑mount hygrostat with two independent switch points, enabling separate alarms or control actions (e.g., humidifier/dehumidifier activation plus general ventilation). With a full measurement range of 5–95 % RH and a typical accuracy of ±3 %, the sensor reliably tracks humidity even in demanding air‑handling units or clean‐room ventilation systems. The built‑in 0–10 V output means it easily connects to your BMS or PLC for continuous monitoring and automated control. The LCD display offers local visibility of the current humidity reading and set points, speeding up commissioning and maintenance. Its housing is IP 65 rated (for the enclosure) and the sensor element is protected by a replaceable sintered/plastic filter that prolongs service life in dusty or treated‑air environments. Compared to generic humidity sensors that offer only single switch output or lack display and dual thresholds, this model gives you professional‑grade flexibility, control and diagnostics—making it ideal for large commercial installations, HVAC contractors and automation integrators.