Taikuwu Digital LED Temperature Controller Module, XH-W3001 Thermostat Switch with Waterproof Probe, Programmable Heating Cooling Thermostat (220, Volts)

works fantastic and acurate

The instructions are on the back of the unit so make sure you understand them properly before you attach it with the screw holes. The are not that intuitive. Other than that it is simple and does the job.

This is a very basic piece of kit but is doing the job I wanted it to. Simple to install and programme. I particularly like the big clear display.

The temperature recorded by the probe is about 30degrees above the ambient temperature

I have just installed this product and it appears to work perfectly but the only instructions are those on the Amazon listing and back of the product itself (no box and no other paperwork). It's impossible to see the latter once installed and it took a while for me to understand those on the listing. The second photo is key to understanding which of the 4 wires is for what!Installation turned out to be the easy part and the large display is also bright. The lead for the temperature probe is of a decent length (1m) and would suggest that when installing this should always be in the shade.The trickier part was how to set it up. I am using it to replace an outside thermostat based on a bi-metallic strip and the good news is that this product is much more sensitive and accurate. In my application I wanted the output to go ON when the temperature falls below around 1C and turn back off when it rises above 2C. To achieve this I set the START temp to 1C and STOP temp to 2C which puts the device in what they call Heating Mode (as STOP > START).Some other points:1) if there are three buttons I failed to find the third2) the two existing buttons/keys are side by side so when they refer to the 'upper' key this is the left key with the apex of the triangle pointing up.3) The reset process (pressing both keys at the same time) did not cause 888 to appear just a single 8.4) The indicator light to the top right of the display is not mentioned but is useful and appears to indicate when the load (yellow wire) is connected to the supply voltage (i.e ON)5) I have no idea at all how you set the 'corrected temperature' or 'start delay' mentioned in the description6) It has survived a few hours at 240V without any issue - will update this review if reliability (or anything else) proves an issueIn summary if there were decent instructions I would have given this 4* as once you understand how to use it it does the job well and is incredibly good value.Finally, as this is a mains voltage device (both supply and output) I cannot recommend this to anyone who is not qualified to work with potentially lethal voltages.

Does what is says on the box

This is being used to control the wash temperature in a still for extracting oils from botanicals. Acurrate to within 1°C.

It works well if heating or cooling power is not bigger than 100W .The cable is too thin. I am not sure its durability.