Honeywell T4R Wireless Programmable Thermostat replaces CMT927

SKU: HW-29-9
Availability: Sold Out

Free shipping

£103.73 EXCL. TAX

£124.47 INCL. TAX


The T4R is a modern wireless 7-day Programmable Room Thermostat. It is designed to provide automatic time and temperature control of domestic systems in domestic or light commercial premises. It is Compatible with 24-230V on/off appliances such as gas boilers, combi-boilers and zone valves; The T4 can be used as a temperature sensing device in an S or Y Plan system and is well suited to control combination boiler installations or additional zones in an S Plan Plus system.

Replacement for the Honeywell CMT927

Out of stock



    • Energy saving tpi control
    • Optimum stop
    • Start & delayed start features that learn how the room is heated
    • Two wire
    • Volt free connections are ideal for use with combination boilers
    • Easy to fit
    • Wireless communication between thermostat and receiver box with 30m range
    • Away mode with specific temperature set (number of days changeableg schedule
    • Battery powered (with low-power indicator)
    • Easy change battery compartment
    • Optional backlight with exte)
    • Temporary schedule override until next set point or for 1 or 2 hours
    • Continuous time
    • Displayed in extra-large lcd
    • Automatic summer/winter time change
    • 7-day programming with 7 day
    • 5/2 or single day schedules
    • Four or six independent time & temperature settings (default is 4)
    • Pre-configured 5/2 heatinnded light on time period
    • Burner ‘on’ symbol

    Replaces the Honeywell – CM927

    Additional information

    Weight1 kg

    Manufacturers Code