Key Features

• Energy saving TPI (Time Proportional & Integral control)
• Wireless enabled upgrade
• Two way wireless communication
• Wireless signal strength indicator
• Built in Economy or Comfort programmes on ST9120C
• Line of Text display for easy programming on ST9120C
• ST9120C fits on industry standard backplate
• ST9120C is a direct replacement for ST9100 and ST6100 models
• CS92A controlled from timer
• Battery powered CS92A -no wiring
• Warranty: 1 year

What's Included

• ST9120C wireless timer
• CS92A wireless cylinder thermostat

Honeywell Sundial Wireless RF² Pack 4, Wireless Timer & Wireless Cylinder Thermostat Overview

This heating pack is ideal for adding a hot water timer and cylinder thermostat to new and existing Sundial systems or upgrading a gravity hot water system.

The Sundial RF² pack 4 contains the ST9120C wireless timer and CS92A wireless cylinder thermostat, giving you control over the heating and hot water temperature in your home.