Replaces Obsolete DT200 (T6620B1008) The DT90E digital room thermostat has been designed to provide automatic temperature control of gas or oil fired boiler systems underfloor heating electric hea..

* Complete with key for tamperproofing. * Holes in frame allow air to circulate freely. * Easy to install - flush mounted. * Max. Size of thermostat 156x91x65mm HxWxD. * Outer dimensions of guard:..

Horstmann are now known as Secure ControlsHRT4B Digital Thermostat with TPI   TPI energy saving software (adjustable for Gas Oil and Electric systems) Backlit Display For use with a..

Replaces obsolete RET-B, RET2000B.  Connects to the same 2 wires. The RET2001B benefits from selectable on/off and chrono-proportional control. Chronoproportional control significantly improve..

Replaces DT90e.  For 2-wire installation.Battery Powered (3.5 Years expected life).5 year warranty.As the first point of contact for homeowners, installers know exactly what features household ap..

Replaces RDH10 Large LCD display Set point 5-30C 5(2)A volt-free contacts Dimensions 120x90x26.9 mm HxWxD Battery Powered (2 x AA) The digital display shows the actual room tempe..