general heating electronic thermostat: Direct wall installation,temperature range +5/+40,LED indicator light indicates heating. Suitable for automatic temperature control of heating (equipment) system. Meets high standards of comfort,safety and energy saving. Voltage: 220VAC Power consumption: 5VA Temperature control range: 5-40 Temperature limit range: 25-55 Energy saving temperature: 5 Temperature switch deviation: 0.5K Ambient temperature: -5-50 Housing protection: IP20 External sensor: Lead length is Colour:Black Material:Plastic Package Contents: 1x floor heating thermostat Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.