Key Features:

• Easy installation
• Product width- 60mm
• Continuous 2-way communication with the Evohome Display
• Open window feature that closes the valve when room temperature drops
• Frost protection setting
• These slim, ergonomically-designed radiator controllers will fit on most standard TRV bodies
• Fits on the most common M30 x 1.5 radiator valves
• Child lock mechanism on the controller with simple mounting lock
• Battery powered with two year battery life
• 1-year guarantee

What's Included:

• 1x Honeywell Home Evohome HR91 Wireless Electronic Thermostatic Radiator Valve Head

The slim, ergonomically-designed Honeywell Home Evohome HR91 Wireless Electronic Thermostatic Radiator Valve Head fits on most standard TRV bodies. It is battery powered with a two-year battery life, and the best choice for radiator cabinets or for areas where the HR92 screen is inappropriate.

Compatible with the Evohome Display

Monitoring your energy use has never been easier. The Evohome Display allows you to monitor and control up to twelve zones.

Energy efficient settings

There are several settings and features that provide impressive energy efficiency, including a frost protection setting and an open window feature, which closes the valve when the room temperature drops. In addition, the valve measures and controls the temperature in up to twelve rooms, and each zone can be individually controlled up to six times a day.

Tamper-proof wireless TRV

If you have young children, the Honeywell Home Evohome HR91 Wireless Electronic Thermostatic Radiator Valve Head is perfect for your home. Complete with a child lock mechanism, you don't have to worry about any unwanted tampering!