1. Wireless connection: Zigbee 3.0
2. Input: 4.5V (3 x 1.5V AA batteries)
3. Power supply: 3 x 1.5V LR6 alkaline AA batteries (not included)
4. Threaded connection: M30 x 1.5 mm
5. Temperature setting range: 4-35 degrees Celsius
6. Size: about 5.94 x 9.5cm
7. Weight: about 154g

Features:
1. Remote control by cell phone, voice control
2. Zigbee standard compatible, supports Zigbee hubs using Zigbee 3.0 protocol, compatible with most hubs
3. Heating schedule can be set according to your daily needs
4. Open window detection for energy saving, automatically turn off radiators when ventilating to avoid unnecessary energy waste
5. Multi-room control, each rooms temperature can be independently controlled and adjusted
6. For M30 x 1.5mm radiator valve with valve adapter, compatible with most heating systems