HONEYWELL BY RESIDEO T4R DIGITAL CHRONOTHERMOSTAT FOR WIRELESS HEATING AND COOLING - Y4H910RF4005

7-day programmable wireless thermostat with separate display unit and wireless receiver included. Compatible with 24-230V On/Off systems and OpenTherm protocol for advanced boilers. Weekly programming, 5+2 mode, up to 6 intervals per day. Holiday/Away function for up to 99 days, temporary override and 5°C frost protection. Backlit display, powered by 2 AA batteries (lasting approximately 2 years), wireless range up to 30 m in residential buildings. Included in the package: T4R wireless thermostat, relay receiver, batteries, manuals.