InkbirdPID Temperature Controller Kit High Voltage 100ACV to 240ACV Comes with SSR 40DA Solid State Relay K Type Thermocouple and White Heat Sink

There is a lot of information available online for this Ink Bird PID controller which made building my project much easier to build. The performance of the unit is very good. It holds the temperature that you set very well once it get's to the correct value. It over shoots the value when you first turn it on and the it starts to become more stable, once it starts to get several minutes of feedback from the thermocouple.

It’s a nice affordable pid. Easy to setup once you understand the menu options. I have no complaints

I tried another PID on Amazon, but was very unsatisfied with the accuracy, This one does the job well, is easier to program, and is only off a few degrees either way. The other one was off by as much as 25 degrees and was very difficult to program. Inkbird comes with good instructions, while the other one had little to no useful setup or programming instructions.

final update:It's okay. The calibration seems to drift a little with outside temperature. I'm not sure if I need to insulate the back of the probe and the probe cable or what. It's honestly good enough for something low precision like a smoker, if I weren't so ocd. I made some pretty good barbecue. I expect to get decent use out of this even if I still have to micromanage it a little more than I'd like.The pid settings I ended up using are c:1, P:1, I:5, D:0, and it seems to keep a fairly tight cycling range. (within 15F degrees of set temp).For temperature calibration, using 225F as a reference (using an analog built in grill thermometer), a +25F to +35F correction was necessary, depending on outside temperature. Reference temp needs to be the same as desired temp since the temperature scaling over the total measurable range isn't flat.I used a different ssr than the one provided, btw. Not entirely necessary, but I wanted an inline neon indicator bulb (part of the modified original smoker controller now used as a connector cable) to not glow when the ssr output is off, and while the connector cable is unplugged from the smoker. I did also add a resistor in parallel to the bulb, but that didn't help with the original ssr, and I'm not sure if it's necessary with the replacement ssr, since I installed the resistor before getting the replacement ssr.(old):update 1: temperature readings are way off. Instructions on how to calibrate are nonexistent, in the vague af manual sent with the pid (which may not even be the correct manual, as the image on the amazon page was required as reference to wire the pid), and there's nothing here in the amazon page on how to calibrate it, either.I did find an option which /seems/ to be calibration, which I used yesterday to calibrate to read correctly at 98 degrees (using body temp as a reference; probe under tongue until probe temp stabilized at body temp), but accurate read doesn't hold as temp rises.It measures below actual temp. by around 10 degrees at room temp, but that margin grows as temperature rises. So the only option seems to be to calibrate it to read accurately at the specific temperature you want to measure at or near, and then re-calibrate if you ever need to use it at a different temp. Which is highly inconvenient.It will at least hold stable at a specific temp when calibrated using that specific temp as reference.I hope...(original review):Apparently it's normal for solid state relays to leak some small amount of power when off...I'll create a more complete review later, after some testing.

I liked that it was cheap but the little thing works great I have a masterbuilt smoker that I really like but the controller went out and they don’t make them anymore. So I converted it to this little pid. Very happy now!