ITC-308 Digital Temperature Controller 2-Stage Outlet Thermostat Heating and Cooling Mode Carboy Homebrew Fermenter Greenhouse Terrarium 110V 10A 1100W

Works great, easy to setup and use. configurable for 'F or 'C. I like the separate AC outlets on a dongle, but I wonder about the maximum load current capacity of the wiring. I've got a couple 200 watt grow lights and a 600/1500 watt space heater I run to grow tomatoes indoors during the winter. These would overload. I had been using a combo timer/switch with temperature control but after a few months this heavy load killed it. That worked for a while and then it's dinky power switch (relay) quit. So I found this Inkbird and ordered one. I'm sure it would do the job -for a while. As soon as I got it I noticed its quality. So I opened it up. It was an easy do. These days you can tell quality simply by seeing electronic components that have their markings still on the chips. -china removes these markings, but Taiwan and others do not. The Inkbird had all its markings and actually uses a rather powerful microprocessor to facilitate the control process. It remembers its settings when power off and that is an important feature. Very well. Since the last gadget died because of its relay failure, I decided to amp this up a bit. [pun intended] When your crop is dependent on not freezing to death -I hate failures. so.. The Inkbird uses a pair of relays -one for cooling and one for heating. These are separate from each other and rated for 15 amp 120 volt loading. Again, for a while... relays suffer horribly short lives when loaded to the max and cycling on/off many times as a thermostat will do. Then my epiphany.. A trick I use, is to construct a plug-in service box wired with 20 amp 120V grounded sockets, and with a solid-state relay, capable of at least 20 amps AC at 120V. I also use a 16 gage [or more] 3 wire power cord into this box. For extra credit, I use an expensive 'zero-crossing' type solid state switch (SSR). These run a bit hot when powering a 15+ Amp load so I add a big heat sink to the 'SSR' to help extend its life. This type of SSR uses a DC control (one/off) voltage between 3 and 35Vdc, so I add a small 12VDC wall-wart to switch the SSR, and let the Inkbird only power the wall-wart which in turn operates the SSR, which is very low wattage and thus a very light load on the relays inside the Inkbird. Note that this SSR box will operate a window AC as well. Add one of those Kill-A-Watt monitors and you can track the voltage, power and expense of your rig.

This works perfectly in an area that would freeze all the time. This turns on a blower that warms the area up.

Using for Kegerator temperature regulation, as my Insignia would initially only get down to about 39 to 42F. First, I found a set screw on the thermostat in back. Removed plastic housing around thermostat. Turned screw counter clockwise multiple times. This made it too cold, and rather than being careful and doing it slowly, figured it's best to have an actual regulator! Now I have the keg plugged into the regulatory, plugged into the wall. Set at 37 degrees with the probe sitting in cup of water on top of keg. 37 because at the bottom of the kegerator will likely be about 32 then, so the temp difference won't lead to freezing hopefully. Works great and easy.

Working great I have had several months. Plug adjust temperature and you are good. I put it on freezer with a faulty thermostat.

UPDATE 8/2025: I replaced the device that was plugged into the Cooling socket, and now it appears to be working reliably again. It might have been a flaky connection, I'm not really positive yet. At least, it has run without a problem a week now. So I am tentatively re-rating this product as 4 stars, and may upgrade it again if it's reliable for at least a year. I should also add that emailing the company for tech support produced a response within 10 minutes, and my follow-up email received a response within 15 minutes. Very impressive! I was initially pleased with this product, and used it to maintain a reasonably consistent, accurate temperature within a small cooler. But it failed far more quickly than I'd expected. I set it up with a 3-degree (F) tolerance. It completed a full on/off cycle approximately once every 20 minutes, and started failing after just under 2 months of use. If you do the math, that yields fewer than 5,000 on/off cycles. The failure mode was that sometimes when it should have switched on the power it didn't, even though the "Cooling" power LED was on, incorrectly suggesting that it was applying power. The first time it failed I took it out of service and tested it for a few hours and it seemed to working fine. So I hoped it was simply a weird fluke and put it back into service, but it failed again, the same way, within one day. Yes, this was an inexpensive device. My original plan was to replace it every year (even if it was working) because I figured that the relays wouldn't be super-reliable. But a 5,000-cycle MTTF renders this unusable for many applications. It's not like it was operating in harsh conditions or with a heavy load, either (it was a USB charger that pulled 6W steady state, operating more or less at room temperature). Now to see whether the 1-year warranty is of any use.

I bought this for our chest freezer to make a fridge out of , it works like a charm, highly recommend

This is an excellent temperature controller. I use mine for a chest freezer, which I keep kegs of beer in as well as maple sap in the springtime. I have two chest freezers, each one of them using one of these temp controllers. This recent purchase is to replace one that was about 15 years old and the probe finally stopped working properly. I keep the probe in a hot sauce bottle filled with water so that the temperature swing happens slowly while I’m running the freezer up to about 36°F. I suspect that all that time with the probe in the water is probably what killed it but that’s OK. I’ve had it for 15 years and it was only $30 at the time. Things I really like about this temp controller is one it’s digital and it if you hang in the right spot, it shows the set point temperature and the actual temperature. You can adjust how many degrees it can vary before the compressor turns on again. You can also set the number of minutes between compressor shut down and start up to minimize wear on the compressor unit.

I recently purchased the Inkbird Digital Temperature Controller 2-stage Outlet Thermostat for my reptile terrarium, and I have been extremely impressed with its performance. This thermostat has proven to be an essential and reliable tool for maintaining the ideal temperature conditions in the terrarium, ensuring the comfort and well-being of my reptiles. First and foremost, the dual-stage functionality of this thermostat allows me to independently control both heating and cooling devices, providing precise and automated temperature regulation. The ability to set different temperature thresholds for heating and cooling operations has been instrumental in creating a stable and comfortable environment for my reptiles, especially considering the temperature variations in different seasons. The digital display is clear and easy to read, providing real-time temperature readings and allowing for quick adjustments as needed. The programming interface is intuitive, and I found it straightforward to set up and customize the temperature settings according to the specific requirements of my reptile species. The inclusion of high-quality temperature probes has ensured accurate temperature measurements, giving me confidence in the reliability of this thermostat. Additionally, the built-in memory function retains the settings in case of power outages, offering peace of mind and avoiding any potential disruptions to the temperature control system. I've been especially pleased with the durability and build quality of this thermostat. The sturdy construction and secure mounting options have made it easy to integrate into my terrarium setup, and I have not encountered any issues with its performance. In summary, the Inkbird Digital Temperature Controller 2-stage Outlet Thermostat has exceeded my expectations in terms of functionality, reliability, and ease of use. It has become an indispensable tool in maintaining the optimal temperature conditions for my reptiles, and I would highly recommend it to other reptile enthusiasts seeking a high-quality, dual-stage temperature control solution for their terrariums.

Excelente termostato, controla con gran precisión la temperatura, empata con el termómetro digital y solo muestra una ligera diferencia en centésimas de grado, está muy bien construido su cable es de buena calidad, complementando con un buen calentador y buenos ventiladores mantienes tu NANO MARINO al 100% en cuanto a temperatura.

Realiza o que promete, tive dificuldade para iniciar o funcionamento, manual não é didático.

Cumple muy bien la función para la que fue creado el producto. Yo los uso en pecera, fácil de configurar, si se te complica la configuración busca videos en youtube.

Me gusta el producto

Cumple muy bien