This room thermostat communicates with the relay box on an 868MHz Radio Frequency (RF) band to control a single central heating system component such as a boiler, pump, or zone valve. Neither product will communicate with other RF products that use different frequencies or communication protocols.
- Energy Saving TPI Control
- Large LCD with time & temperature
- Battery Powered (with low power indicator)
- Volt Free Connection
- 1 minute minimum ON time
- 24 hr clock display format