Inkbird ITC-308 Digital Temperature Controller Thermostat Dual Relays Heating Cooling 220V Plug

I always thought that the temperature control functionality was so-so at best. Nothing to write home about.What I want to talk about in this review is the reason I am absolutely LIVID at this thing. This thing has been overheating on an apparently periodic basis in the year that I've had it -- not just once, but at least four times! You can only see three scorch marks in the pictures, but there's another one that you can feel with your fingers as well. The heat has now twisted the insides of this thing so badly, I can't even get out the plug for the fan heater that it was controlling.And imagine for a second, that this controller has been lying UNDERNEATH MY DAUGHTER'S COT for the last year. I can only thank the carpet manufacturers that their product is so fire-retardant ... I shudder to think what could have happened otherwise.Get something from another company. Do not trust your loved ones' lives to this one.EDITED TO ADD: representatives from the company selling this product have contacted me twice to attempt to bribe me into removing my review. That probably shows that the high rating of this product is artificially inflated.

Some time ago I made my own fermenting fridge with heater and fan. I had great fun building the electrics using an STC relay that does virtually the same as this product. My DIY effort is bulky, cost about £25 but does the job and I still use it. I then discovered this product. I dispense my beer from a pressure barrell and needed a second fridge to keep a stable temperature of around 10c. Rather than build another unit I decided to give this a go. Slightly more expensive but very compact. Plug and play. The instructions are easy and simple to understand. Where it beats my DIY effort hands down is its ability to set individually the over run and under run in temperatures. My DIY only has one setting for hot and cold. If I set the temp for 20c with a .5 difference the heater switches off at 20 but the background heat rises beyond 20.5. The fridge comes on and exactly the same happens but the other way around. As a result there is a constant cycle between fridge and heater as it works between a minimum of 19.5 and a max of 20.5 The only way around this is to increase the .5 setting but then you get a wider temperature range. For brewing you dont want to great a fluctuation which is why you build a beer fermenting fridge in the first place. Experience has taught me that you always get a greater over run on the heater than under run on the fridge. Solution is a device that lets you set the differential individually for the heating and cooling. The Inkbird does exactly that and as a result I avoid the constant cycling between heating and cooling. I have mine set at .5 for the fridge and 1 for the heater. At 20 it never goes above 20.5 as the fridge comes on and when it switches off at 20 it never cools much further than 19.4 but with a seperate setting for the heater that doesnt come on.Sorry if the above is long winded but the short version is the Inkbird allows for greater control of temperature than other options out there as it offers seperate controls for when cooling and heating come on.

A must product for any aquarists in the hobby. I bought  Digital thermometer  after I was recommended by a friend. I remember  Temperature Controller STC-1000 All-purpose Digital Thermostat Temperature Calibration with Temperature Sensor Probe  was a very popular product in the hobby and people had to carry out lot of DIY for the plug sockets. But this has made life much easier.Package Content:1x Digital Temperature controller or Digital Thermometer.1x manualIt is well packaged and arrived on time.I tried to follow the manual but I couldn’t understand very clearly, perhaps it’s me. So I googled and found someone has written a great article on how to set this up. It is indeed very simple to do so. The  Digital Temperature controller  has to power sockets – One for the cooling and one for the heating.I use the  Temperature Controller  on my marine tropical fish tank. You need to install the stainless steel thermometer probe in to the fish tank and start configuring the unit. To configure you need to long press the “Set” button and use +/- to set the desired temperature you need followed by “Set” button again. Using the “Set” button you can set to High Alarm, Low Alarm, difference between when the Hot and Cold – the lowest point you can go up to is .3 which is great, so the temperature doesn’t swing too much before it kicks off a fan or a chiller.I have only connected a 300watts heater, as soon as the water reaches to the set temperature it cuts off the heater. I have set the high alarm to trigger when there is 1deg changed. It has set off several times in the past few days in the hot weather, I simply open the windows and let the water cool down naturally, its what happens in the natural environment as I am an old school boy type I don’t use a fan or a chiller.So far the its been good and been working very well. A great product to have if you have a tropical or a salt water fish tank, it could perhaps help the cold water tanks too.NOTE: One thing I would say is you need to keep cleaning the stainless steel probe if not it could mislead the unit to start the heater or a chiller.I really hope you found my review helpful and would love for you to click on the “YES” button to say so. If you don't think my review has been helpful, before you click on the “NO“ button to say I was unhelpful, I would love you to leave me a comment with your thoughts, so I can try improving my future reviews.