PID Temperature Controller Kit, CGELE Voltage AC 100~240V Comes with SSR 40DA Solid State Relay, K Type Thermocouple Sensor, and Black Heat Sink

Unit came exactly as advertised. It's working perfectly in my mini greenhouse

Menu took a little while to figure out but once set up it works great. I put it on my cigar humidor as the electronics on it died. Temperature is rock solid on 70 degrees. It can be used for heating or cooling.

Although the instructions were clearly no written by someone who was fluent in English, the device itself performed flawlessly and the kit was excellent.

This worked great for turning my analog electric smoker into a now digital electric smoker. I am very happy how it worked after I was done putting it together. If I had one thing to say about the directions, watch you tube videos on how to put everything together. I am very mechanically inclined and was very confused with the instructions that came with it. I thought the price was decent. The temperature was almost perfect. I will be trying it out on a pork shoulder this weekend. Shipment was also very fast.

Temp was off about 14 degrees out of the box. The instructions are cryptic to say the least. Wiring it up was straightforward, then I saw temp was off, so a quick look at the instructions says P13 is temp offset. OK, dig through instructions to find how to get to setup. In the flowchart it shows to hold SU (SV? can't read it) for 25 seconds. OK, got it. it turns to P00, you can then hit up/dn keys to scroll through settings, but ... P13 never comes up. P00 is data lock, the manual shows valid values are like 0,1,18, etc. but doesn't say which does what. If you buy one of these, 0 locks out most settings, 1 opens a couple, 18 opens more. So to set temp offset, hold the button for 25 seconds, when it changes to P00 set the value to 18, now you can get to P13 to put in a temperature offset. (it is concerning that the offset is this large, most of my other controllers are name brand and I've never needed this big of an offset) Also of note: I'm running a heater on this, 1800 watts, in a room with an ambient temp of 55F. The heatsink hit 110F !!! There seems to be quite a bit of internal resistance on these SSRs when there should be essentially none. Needing to de-rate an SSR based on load is a bit concerning, but, for a PID, tc, ssr and heatsink that costs about half of a single Opto22 SSR, I guess I can't complain. it seems to be doing the job. Only time will tell if the thing will last

I watched a YouTube video to figure out how to wire this to my powder coating oven diy. Very complicated but still working

It was fairly simple enough to wire up. At room temperature it kicked on/off as expected, mostly. I had to adjust the Temp Offset by 12 degrees. As the temperature got down to 45⁰ F, it started cycling on/off rapidly. I checked all the obvious things. Thermocouple location, attachment, etc. The display showed the correct set-point and current temperature, but the heat would not stay on. The temp continued to drop. When it reached 39⁰ F, it stopped doing anything. I dove into the "manual" reference sheet and set some related settings in an attempt to correct, Min On time, Min off Time, Motor Run Time, nothing helped. In desperation I changed the thermocouple output setting, nope, nothing. It will not work below 50⁰ F. It will not work for my needs at all. Also, the control unit was nowhere near that cold. An IR thermometer read 75⁰ F. It is hooked up to 220v 20a single phase heat element through the 40a SSR.

Works great! I used it to cycle a heat gun on and off to maintain temperature in a container for a science project. I barely used its features. I didn't use the PID, just on off and it maintained temperature plus or minus 3 degrees.

Works well for me, just wiring circuit diagram given with it was little wrong.