Frost protection thermostat 3-16 degrees - Temperature sensor QAF81.6

Frost protection thermostat 3-16 degrees - Temperature sensor QAF81.6 – Siemens: Frost protection thermostat 3-16 degrees QAF81.6 frost monitor is used for the air-side temperature monitoring of water-air heaters in ventilation and air conditioning systems to prevent frost damage, it has a small switching differential and high reproducibility, the reset is automatic, robust die-cast aluminum housing with removable Cover, mechanical setpoint device with Celsius and Fahrenheit scale, microswitch as changeover switch, sensor unit made of copper, consisting of membrane system and capillary, measuring unit filled with R134a, sensor response length approx. 30 cm, adjustable setpoint -5 °C to +15 °C C, protection class IP 54, 6 m capillary tube length