Digital Touch Screen Thermostat with Display Lighting and 7cm Diagonal Suitable for electric and water underfloor heating, infrared heating, electric heating, etc. Internal and external temperature sensor (NTC 10 kOhm), temperature control range adjustable from 5 to 50 °C Individual weekly program (Mo-Fr/Sa-So), programming is preserved after a power outage Easy to install in standard flush-mounted box, key lock, child lock, anti-freeze function at 5 °C Features: Suitable for hot water heating, electric heating or propulsion control. 7 cm diagonal backlit display. Individual weekly program. Easy to assemble. Programming remains retained after a power outage. Key lock / child lock. High reliability. Technical data: Mounting type: flush-mounted. Model: Wired Operating voltage: 230V (50Hz). Maximum load: Switching power: 16A / 3680W. Operating Temperature: 0-50 Probes: internal and external. Temperature control range (internal): 5-50 °C (ambient sensor). Temperature regulation range (external): 5-50°C (soil probe). Frost protection: yes. Soil limitation range: 5-60°C Display/Lighting: Yes Protection class: IP20. Dimensions (with frame): 86 x 90 x 13/43 mm. Package includes: 1 x E91 Thermostat 1 x 10KOhm Soil Probe 1 x mounting material. 1 x user manual in German