Tuya ZigBee Smart Thermostat for Pilot Wire Heating Radiator 311Z is a thermostat that uses the Zigbee communication protocol, so the 13112 thermostat requires the Zigbee Gateway as a bridge for network connection. After the mobile phone is connected to the Zigbee Gateway, follow the instructions of the APP to connect the 1311Z thermostat, and then the 1311Z thermostat in each room can be controlled through the mobile phone APP. Compatible with 4-wire/6-wire. Independently developed, software can be upgraded OTA. Power monitoring function, saving energy. External sensor to ensure accurate temperature. Multiple modes, manual mode, programming mode, ECO mode. Voltage:110-230V AC 50HZ Rated current:15A Operating temperature:5-40℃, indoor use only Storage temperature:-20-70℃ Communication protocol: IEEE 802.15.4, Tuya Zigbee Radio frequency range: 2.4GHz Temperature sensor: NTC, B=3950, R25=10KΩ+1% Protection level: IP20 Compatibility:Compatible with all Class 1 electric radiators equipped with pilot wire technology Note: we strongly recommend you seek professional installation. Please check as much as possible to make sure the item is what you need. Tips:The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use. Colour:White Material:Plastic Package Contents: 1 * Tuya ZigBee Smart 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.