KETOTEK KT3100BL Digital Thermostat Plug Socket UK HD LCD Display Temperature Controller Outlet 16A 100-250Vac Blue Backlight with 3m Temperature Sensor for Reptile,Incubator,Greenhouse,aquarium

I bought this to resurrect a fridge with a faulty thermostat. The fault caused the fridge compressor to run continuously, so it was simply a matter of interposing this controller between the mains socket and the fridge plug and placing the temperature sensor inside the fridge. The sensor wires are slender enough to allow them to run between the fridge body and the door seal without preventing the door from closing properly.The unit has been running 24/7 for 7 months without any problems. The sensor seems reasonably accurate - setting the controller to switch on at +1C and off at 0C, a bowl of water placed near the centre of the fridge develops a thin surface layer of ice.The fridge draws only ~1A on startup and about 0.2A when running normally, so obviously I can't comment on how the unit would perform with higher loads, but it seems ideal for this purpose.

This temperature controller has worked fine so far. Its reported temperature was a little different from a laboratory-style mercury-in-glass thermometer, but an inbuilt function permits a simple correction.The supplied instructions are clearly written so, while the product is not quite intuitive, as others have reported, it is reasonably easy to understand and easy to use.

I bought this to try and safe money on heating by running a portable oil filled radiator at different temperatures for day and night. It seems to do this perfectly, but it took me a few attempts to get the settings right.Basically you enter a 'Start' and 'Stop' temperature which I thought meant it would be on if current temperature is lower than 'Start' and go off when it reached 'Stop' - it's subtly different.In fact you're setting your desired temperature range for the room - meaning the 'Start' temperature would have to be much higher - I thought by setting it low it would switch on sooner - the reverse is true.So - to get it to be 'on' for heating, set the 'Start' to something like 20 and 'Stop' to 24 - this means when the temperature drops below 20 it will switch on, and stay on until the temperature reaches 24 - it will then be off until the temperature drops below 20 again.It's really Min and Max temperatures for the room. It's probably really obvious, but I thought I'd post this in case anyone else ends up doing the same as I did.Other than that, it's a good unit that does the job well so far, would certainly buy another if needed.

As with most integrated electromechanical heater thermostats, sensory hysteresis (i.e. On and Off thresholds) often means unsuccessfully playing around with settings to maintain temperature cycles to within a tolerable variation. This was certainly the case with my 3kW workshop heater, that could never be set 'just right'.However, since using this thermostat in-line to the heater (its thermostat simply left set on max), with the wired temperature sensor significantly distanced behind the heater fan (actually hung mid-height from a rack), I've set the temperature hysteresis (on/off thresholds) with a mere 0.2deg. between them.Now the workshop remains heated to a lovely constant temperature, and the heater even appears to be coming on less, with probable power savings into the bargain as-well 😀DEFINITELY worth considering, if you have an outbuilding/workshop and electromechanical heater (i.e. the type that powers straight up as soon as power is applied).

We have solar panels and the inverter is located in the loft.Recently the inverter has been recording temperatures of 65c - which leads to derating / risk of failure / fire.This useful little device, coupled with a 15W fan has helped improve air flow, reducing temperatures to more reasonable 40c.The lack of a back-light is a negative, but for myself not an issue as it's a set once & forget install. The instructions are a little unclear, but usable.Recommended.

Once set up in accordance with the manual to come on at 1 degree and off at 4 degrees I plugged in an appliance and placed the sensor into the freezer. The temperature dropped and when one degree was reached the little blue light indicator came on showing it had activated, however it did not provide any power to the appliance so essentially it is useless. There is not a troubleshooting section in the instructions so I tried to find help online all I could find was the same badly written manual and a company website that didn’t work.

I bought this to run a greenhouse heater. It has worked well over the winter. Not much more I say really

I got this (2023-11 £15.99, Black Friday) on a recommendation and it does what I need: maintain temperature, and remember the desired temperature across power cuts. It's also good that the temperature probe is on some cable, but one sad day that cable will get broken and be difficult to repair.The other features of timed switch on / off are documented but I can't make them work. It isn't clear what triggers the timers to start. I tried poking buttons and cycling the incoming power.I was surprised there isn't some cheaper competition, it's hardly a fancy or complicated device.