Simple room thermostat with rotary regulator and included floor sensor (NTC, 10 kOhm) For control of electric or hot water underfloor heating systems and other electric heaters Adjustment range from +5C to +40C; economy switch allows manual night setback This unit does not have an internal ambient temperature sensor and must be used with the provided external floor sensor Dimensions: 86 x 86 x 45 mm Features: Min/Max temperature limitation Continuous temperature preselection LED indicator light (heating mode) NTC external temperature sensor with 3m connection cable Technical data: Mounting type: flush-mounted Model: Wired Operating voltage: 230V Maximum load: switching power 16A / 3680W Control type: 2-point on/off Operating temperature range: -5C to +50C Probe: external NTC 10 kOhm, 3 m cable Temperature control range (internal): not applicable Temperature regulation range (external): 540C (with soil probe) Frost protection: yes Floor temperature limitation range: 540C IP rating: IP20 Display/illumination: none Dimensions (W x H x D): 86 x 86 x 45 mm Package includes: 1 x MST1 Thermostat 1 x Floor Sensor 1 x Mounting accessories 1 x User manual (in German) Note: This unit does not have an internal ambient temperature sensor and must be used with the provided external floor sensor