Feature:1. Flexible programming: Program up to 6 periods per day. Same schedule at the weekday, then individual for Saturday and Sunday.2. Accurate Control: Keeps temperature within the level you set at the accuracy of 0.5℃. Great for the building that applied in-floor heating system.3. Conversion between Celsius(℃) or Fehrenheit(℉) is available. And all setting\u0027s languages sychronize with your time zone, local address and language.4. Suitable for installation within a standard 86mm hidden junction box and European 60mm round box.5. Easy to Install: No batteries required, and saves setting when un-powered.Specification:The unit has a 5-1-1 programming system with six periods per day. Perfect for the house that applied radiant floor heating system.Features:Flexible programming: Program up to 6 periods per day. Same schedule at the weekday, then individual for Saturday and Sunday.Accurate Control: Keeps temperature within the level you set at the accuracy of 0.5℃. Great for the building that applied in-floor heating system.Conversion between Celsius(℃) or Fehrenheit(℉) is available. And all setting's languages sychronize with your time zone, local address and language.Suitable for installation within a standard 86mm hidden junction box and European 60mm round box.Easy to Install: No batteries required, and saves setting when un-powered.Note:*Please read the user manual carefully before use.*The schedule for this thermostat can be adjusted to 5-1-1 (Monday through Friday have the same schedule, then individual for Saturday and Sunday).*For the unit with no WiFi, App and voice control are not available.Specifications:Material: PC+ABS(fireproof)Color: Black / White (optional)Connection: With WiFi / No WiFi (optional)Sensor: NTCAccuracy: ±0.5℃Set Temp. Range: 5~35℃Room Temp. Range: 5~99℃Power Supply: 95-240V AC, 3A, 50~60HzPower Consumptions: < 1.5WTiming Error: < 1%Current Load: 16A Ambient Temperature: 0~45℃, 5~95%RH (non-condensing)Storage Temperature: -5~55℃Installation Hole Distance: 60mmItem Size: 8.6*8.6*3.9cm / 3.38*3.38*1.53inPackage Size: 10.5*9*5.8cm / 4.13*3.54*2.28inItem Weight: 168g / 5.92ozPackage Weight: 266g / 9.38ozPacking List:1 * Thermostat2 * Screw1 * User Manual1 * External SensorPackage List:1 * Thermostat2 * Screw1 * User Manual1 * External Sensor