Fuss free, Simple to use manually operated thermostat. Full installation & operating instructions included. 1 year manufacturers warranty. Maximum switch rating of 16Amps. This thermostat will switch up to 20m2 of 150w/m2 or 200w/m2 of underfloor heating. LED to indicate when heating is on. Technical Data Voltage: AC230V Power Consumption: 5W Setting Range: 5...40C Ambient temperature: -5...50C Protective housing: IP20 Housing Material: Anti-flammable PC Certification: CE Floor Sensor: Rubber-Thermoplastic NTC Sensor with 3m cable. N.B. Although the thermostat is rated to 16Amps, we strongly recommend that you do not load any thermostat to the full extent of its 16A relay contact rating. It is good practice to restrict the load to 2kW~2.4kW (10A~12A).