Power supply: AC 110-230V Temperature range: -40Celsius -99Celsius Temperature measurement accuracy: +/- 1Celsius (-40 Celsius -70 Celsius) Sensor cable length: 100 cm Sensor cable type: NTC Size: 93mm x 56mm x 34mm Output capacity: cooling (10A/250VAC) heating (10A/250VAC) LED Status: Cooling indicator (cooling and heating lights cannot be on at the same time): On: cooling operation Off: cooling Flashing: Press Delay Heating indicator: On: working heating Off: Heating off Indicator Light: On: status setting settings Data Indicator light (yellow light: network distribution light): Data transmission light Network indicator (indicates whether the APP is connected to the device correctly): On: Blinks: offline Installation: thermostat is forbidden to be used in or in an excessively humid environment. It is forbidden to use in high temperature, strong electromagnetic interference and a strongly corrosive environment. Assembly condition: ready to use Colour: black and white. Material: plastic. Package contents: 3 x Wireless Digital Temperature Controller 3 x Temperature Sensor Cable Only the above package, other products are not included. Note: light reflection and different screens may cause the colour of the item to be slightly different from the real thing. The allowed measurement error is +/- 1-3 cm.