with built-in probe, scale cover white RAL 9016, liquid-filled thermostat, stable control behavior even with small design control difference (< 1 K), corresponds to EnEV or DIN V 4701-10, hidden upper and lower temperature range limits or setting blocking using stop clips, Rotation indicator and symbols for basic settings and night-time temperature reduction, brief information with the most important settings, can be mounted on a switch box, setpoint range 0-27 °C, memory number 1-5, with zero position (valve opens at approx. 0 °C), frost protection, max. Sensor temperature 50 °C, hysteresis 0.4 K, water temperature influence 0.3 K, differential pressure influence 0.4 K