ESI Controls Electronic Digital Room Thermostat with TPI and Delayed Start

Easy to fit with value for money

Easy to fit & does the job, replaced the existing analogue bi-metal strip room stat in under 20 minutes with no problems. Mounting holes are a little tight & may benefit from slightly enlarging to get exactly level when mounted. Seems to keep a good temperature range. Only negative comments are that the led display is not illuminated at all so can be difficult to read if in a dark area, also there is a distinct audible click as the unit cuts in / out at times. Suspect that there is a small relay actually switching the line out.

Received all good thanks do you sell the one with two wires and battery operated

It works as expected. And it is one of the products which is suitable for my current wiring. I didn't want to change it but just wanted to replace my old electromechanical Sunvic TLM 2253. Even metal box (not a back-plate) from Sunvic was suitable for this thermostat. So I needn't to drill or change anything.One of the downsides could be that it has a built-in accumulator instead of a replaceable battery. I hope this accumulator will long last. As for wiring it is fully compatible with 3 wires - N, L, LS.

No connection for the batteries another rubbish purchase from amazon

Replacement for old (7 yrs) Esi unit. Easy to install. Accurate. Just wished they lasted longer!!!

So far I'm very happy with the thermostat

I'm very impressed by this thermostat. It does exactly what it's intended for. Very impressed.