This is a digital e-ink display smart thermostat for boiler or thermal actuator heating control system in each single room. Build-in sensors in your  wireless room thermostat detects when the temperature falls to a chosen level and then feedback to the heating system to turn on.  WT-75 thermostat shows the current room temperature, set temperature, or relative humidity on the display.  Item No.: WT-75 Programmability: 7days programmable from app  Mode: Manual Mode, Away Mode, PRG Mode  Color:  Black or White  Display: E-paper, E-ink display  Material:  ABS+PC Packing : Netural White Box, OEM acceptable Other function: Child lock, Open window detection, Frost protection, Temp. calibration  Optional: Opentherm protocol, WiFi optional, Zigbee optional Cetificate: CE, ROHS

This is a smart wifi room thermostat for boiler or thermal actuator heating control system in each single room. Build-in sensors in your  wireless room thermostat detects when the temperature falls to a chosen level and then feedback to the heating system to turn on.  Item No.: WT-25 Programmability: 7days programmable Mode: Manual Mode, Away Mode, PRG Mode  Color:  Black or White  Backlight: White Material:  ABS+PC Packing : Netural White Box, OEM acceptable Other function: Child lock, Open window detection, Frost protection, Temp. calibration  Optional: Opentherm protocol, WiFi optional, Zigbee optional Cetificate: CE, ROHS, UKCA, REACH, RED