Inkbird ITC-608T Temperature Controller with Dual Temperature Sensor AC Dual Stage Outlet Thermostat with 12 Period Time Stage 1800W ETL Listed

Used in aviation for a project. Work as advertised and was reliable and inexpensive.

I've never used a device like this before, but decided I needed one to operate/control a secondary heater for my inflatable spa, that only heats the water to a max of 104. 104 is nice, but the max temp typically drops a few degrees once the spa is uncovered and the jets turned on, so I wanted a way to get my "start temp" up a few degrees, and keep it there each time I open up the spa and get into it. The heater I chose is a 1500W submersible model (at 110/120V household current, that's a draw of about 12.5 amps). Saw all the reviews from guys who complained that their Inkbird promptly died under this kind of load, but the device IS "rated" to safely carry a load of up to 15A. I've now used it a little with the spa and secondary heater, and so far, it's working as advertised.If you've never used a device like this, trying to figure out how to program and use it from the instruction manual is hopeless. The manual is like trying to read hieroglyphics. Even a few YouTube videos I found featured guys whose descriptions of how the thing works made it sound like you're operating a nuclear reactor. Once you find the right video (as I did after three tries), you'll finally see that setting this thing up and running it is VERY easy.One probe/input monitors heat, which is controlled from the "Work 1" outlet. The second probe/input monitors cold, which is controlled from the "Work 2" outlet. When the Work 1 outlet is on, the Work 2 outlet is off, and vice versa. You can't program both outlets to work at the same time ... they toggle back/forth, so in my application, I only need/use the "Work 1" outlet.Once the unit is plugged in, and a temperature probe is plugged into the input jack that corresponds to the Work 1 outlet, the unit immediately starts showing the ambient temperature sensed by the probe ... that's the top number on the display. The bottom number is your maximum heat setting, and it's very simple to set. When the temperature of the probe reaches your max setting, the Work 1 outlet is turned off. You can then set any differential you want between your max setting and the point you want the Work 1 outlet (e.g., heater) to come back on. It will then remain on until your target temp is reached again. The Work 2 outlet/probe works the same way, except you're setting it for cooling instead of heating. So, with this one controller, you can control both heating and cooling from one power source, as long as your heating and cooling devices never have to be on at the same time.This thing has other features, but I'll leave discussion of those to people with greater experience/needs than me. Just wanted to say I'm very pleased with the way this thing is working for me so far, no thanks to the instruction manual supplied with the unit. Only time will tell how long that continues.

I have an old chest freezer that the thermostat doesn't work. I use this temperature controller to keep it at the desired temp, it was much cheaper than getting the thermostat replaced. So far it is working very well. We recently had a few power outages ranging from seconds to a couple of hours and it retained it's settings. It also has a compressor delay setting which is good for something like a refrigerator or freezer.

I mistakenly assumed Inkbird products were going to be mostly WiFi …not this one! Regret not returning this for what I intended getting and that is the WiFi dual temp sensor (marketed for plants?) but I went ahead and kept this since I couldn’t afford the lead time. Anyhow it works fine and as described, that is, a relay switching on / off your device of choice controlled by for your chosen parameter range be it temp., humidity, etc. I use it for koi pond temps in the hot summer heat which will kill fish. It came with two temp probes and here’s my only gripe: either make the probes heavier or provide clamp-on weights so they don’t almost float. and haven’t read the manual but for measuring r.humidity I’m unsure as to whether special probes are required as an accessory? Since I haven’t cracked the manual yet Thank goodness they finally made a simple, accessible, affordable, WiFi temp sensing meter. Couldn’t find one a year ago when I needed it badly with very few options of decent accurate water temp monitoring other than the old (throw in) pool thermometer.

The thermostat controller in my 10-year old deep freeze is dead and they are no longer made. I either needed to find another thermostat or buy a new freezer. This is a very flexible thermostatic controller that met all my needs. Many programmable parameters including wide temperature spread, adjustable differential (so it can heat/cool several degrees, not just try to maintain an exact temperature), and adjustable compressor delay. These last two are critical for refrigeration applications because frequent starts and/or starting very shortly after turning off will damage the compressor and/or motor.The programmed parameters stay in memory even after a power interruption.DISCLAIMER: In case you're planning on doing what I've described above, be aware that I'm an electrical technician by trade and I plan to supply power directly from this controller to the compressor (by cutting and splicing wires). This will allow the interior light and the factory high temperature alarm to work.

Right out of the box, it is ready to go. For the uninitiated, adjusting it could take some getting used to, but once one knows what the menu codes means, setting up for temperature control is easy. I originally purchased this to help regulate my fermenting of Belgian beers and saisons, but it has come to be of use with growing seedlings, fermenting foods, and a few other applications, working in tandem with heat mats and fans and cooling units. Highly recommended.