Honeywell DT90 Wired Digital Thermostat The Honeywell DT90E Digital Room Honeywell Thermostat leads the way in energy efficient control by using advanced technology to maximise the energy efficiency of the heating system. It has been designed to provide automatic temperature control of gas or oil fired boiler systems, underfloor heating, electric heating and zoning systems. The Energy efficiency of the Honeywell DT90E Honeywell Thermostat is addressed by state of the art control performance qualifying it as a Load Compensator. Featuring an ECO button energy saving feature which gives timed setback or boosts temperatures to reduce energy demand as well as an ‘OFF’ setting that can be used for frost or hypothermia protection. Key Features and Benefits: Wired Digital Room Thermostat Energy Saving TPI Control ECO Button for Energy Saving Mode Two Wire, Volt Free Connections - Ideal for Use with Combi Boilers or Heating Zones 5 to 35°C Set Point Range OFF' Setting with Adjustable OFF Setpoint Mains or Low Voltage Switching Height: 48mm Width: 94mm Depth: 96mm Manufacturers 1 Year Guarantee