The Honeywell T3R wireless programmable thermostat provides easy time and temperature management and is appropriate for use in household heating systems, social housing, new construction, and mass installation settings. T3R supports OpenTherm control and is compatible with a wide range of boilers and systems that include 24 - 230V on/off, such as gas and oil boilers, combi-boilers, and heat pumps. However, T3R is not suited for controlling electric heating. The screen is large, and the icons are immediately recognizable. 5 different control buttons Battery-powered Start-up screen for the date, time, and clock With a pre-configured schedule, you can set 7 days and 5/2 days. With the copy day option, you can choose from up to four time periods per day. Set the clock to 12 or 24 hours. Restore the schedule and use the factory reset feature. The temperature of the room and the setpoint are displayed. Temperature measurement can be offset by setting a time limit and a cycle rate Setpoint minimum/maximum facility Fault-finding in fail-safe mode is aided by alert messages.