Model TC-3

Works great for the heat lamp in my exterior well house in the back yard. It saves me from having to keep up with the temp drops in the weather and having to turn the heat lamp on and off. Great quality and price.

Plug it in and be protected. I used this to regulate the heat tape on the hose and main connection point on our RV. It worked as advertised. Having 2 outlets was a real benefit for me.

when i bought this i was a tad shy because of all the bad reviews and i was also entangled in a bitterness towards seller when i ordered it took several days for them to ship said in stock but it wasnt, after i received the product i realize takes a little gray matter to use it properly, i originally placed it an old style lamp holder you know like grandma used to have thats got a screw in socket with two outlets on the side, but the bulbs heat kept the unit from ever coming on at all, puzzled i finally figured that one out, i put the unit well away from any sources of heat inside my well house and used the 2 outlets one going to a small ceramic heater blowing on my well pump, the other to an extension cord ran outside with a mere childs night light attached, i also purchased a cheap digital thermometer the kind that transmits 100 feet and put receiver inside my home, the week i bought this we had record low temps here well into the low teens, i would check my remote thermometer inside and could see it maintained temp inside well house between 33 and 4o just as advertised , i could also peer out my window and see exactly when unit was operating via the night light placed outside on the extension cord, took me awhile to gain trust in the unit because of all the negative reviews but it works fantastically , i trust the unit has more than paid for itself in less than a month in saved power by maintaining just enough to prevent freezing without having to constantly run a bulb or heater, plus the peace of mind that my well doesnt freeze, i still check my remote thermometer and yep always between 33 and 40 and on really cold nights i can see the little night light come on assuring me its doing its job, i think the people giving the unit bad reviews either got a lemon or maybe not bright enough to use it properly as i did myself originally lol, but i give it A+ works great for me, if mine breaks ill be buying another great product ;-) Adam

Ok, not perfect but I'm really glad I bought this. This was purchased for my outside dog to run a heating pad and heated bucket. She get too hot inside our house so I have two 1/2 round k&h heating pads in her igloo. One heating pad I have plugged in directly to outlet, the other to this cube with the bucket to kick on when it get really cold.1st-- initially doesn't work in my outside outlet. They are recessed (most are). I had to purchase an adapter for my adapter.(no pun intended). So, it now sticks way out. If it gets bumped hard it will fall out. But, so far so good. I Constantly check it. Attn. company farm innovators design flaw!!! Add an inch thick square block to the back of the plug and you'll have a much improved product.2nd-- it turns on at a higher temperature then 36. I think it's on at 42 off at 49. ( test it by put a lamp outside. As the temp drops check to see if the lamp is on.) I really need this to be better. I already have one pad going, I wish it would kick on at closer to freezing. Our lab is literally hanging half out the door to cool off. She is 14 and swells because of both heating pads are on in 40 degree weather. I've been unplugging the other pad. Then if it's freezing go out and plug it back in. If it worked correctly, there wouldn't be a need to do this.I purchased a t-2 for 26 degree. Haven't tested it yet, but will and post results. If it works like this one, I may be using that one for my bucket and 2nd pad.The good news is I'm not going out in the middle of the night to break water

I purchased 4 of the cubes in September 2016. I use these devices to turn on 100 watt IR ceramic heaters (reptile heaters) to keep my sail boat engine compartment from dropping below freezing. I tested all 4 yesterday (11/6/2019) by freezing them in my freezer and then warming them up and seeing if the cube opens up as the cube warms up. All 4 worked fine. This is a crude test and I can’t tell the exact temperature where they turn on and off, but generally speaking they work (The boat refrigerator was down to about 25 degrees F when I took the cube out to test). They have worked for 3 winters and are headed into their 4th.I use 2 x 100 watt bulbs per cube so each cube is passing less than 2 amps of current. I would not use these devices to control a 1600 watt heater, I don’t know if the contacts in the cube can handle this high a current but for about 2 amps, they have worked fine for me.Also note that my cubes are used indoors (in a boat). They do fit a little tight into their receiving 120V plug-in but they do fit.I have read a lot of the negative reviews so I am cautious of these cubes. I run more than I need so that a single failure won’t let the boat freeze. I make sure that the ceramic reptile heaters are in good quality aluminum reflectors and are well away from anything that is combustible. If all the cubes should fail in the switch on position, there would still not be enough heat generated to cause a problem.These cubes have worked well for my application.

These are great! Make sure you place it where it will be shaded from the sun!During the really cold (below 32) days during 2024 and this year, I had the block heater in my diesel truck plugged in allthe time when I the truck was parked. Now with the wide temperature swings I used one of these units so I could still leave the block heater connected. I also have a small outdoor LED lamp plugged into the outlet so I know when theblock heater is being powered. Several day ago I noticed that the block heater was off, but the outdoor temperature was30 F. I wondered about that and decide to check this out. The sun was out and the outlet was in the sun. I moved theoutlet into a shaded area and the heater came back on after a while. For the price, get two!

Tried to set up a battery heater for my older EV. I attached a couple heating pads to the bottom of the battery case, plugged them into the 35/45 outlet, ran an extension cord to this switch/outlet, put the under covers back on the car. Now I have a nifty battery heater *that does nothing at all*.I couldn't test the thing because it wasn't cold when I did the work. Now it's 20F in my garage, I plug in the extension cord, and nothing happens. The cord is fine, the heaters had worked (I could test them). Pretty sure this switch is just junk. Do yourself a favor and don't try to use one of these in a location you can't access. When yours turns out to be a dud, you'll regret it.

This is not waterproof, so I keep it protected out of the rain when used outside to turn on my heater used for the chickens water dispenser and a birdbath. If you use this on an outlet that is attached to a heated structure, it will not operate as advertised, the building residual heat will trick it into thinking it is warmer out than it is, you have to get it away from a heated building, unless your place is modern with tons of insulation and not like my 70 year old frame home.

I connected this to the block heater on board my diesel pickup so that I can plug in my truck and have the on board charger top up my battery and kick in the block heater only if needed. This has continued to work flawlessly for years and the temperature set points are about right for my application. Other temperature switches I had bought in the past, simply didn’t last.

I got this to control a small heater I have in my tractor shed. I don't need heat all the time, just when the temperature drops below freezing as the heater is only intended to make it easier to start the tractor. This adapter is doing the trick and seems to work well at allowing power flow within the stated temperature ranges. In the past I had to remember to go out to the shed to turn the heater on if it looked like the weather was approaching freezing. Now the system looks after itself and I save power by not running the heater when it is not needed.

We use this for a small space heater in our pumphouse for when it drops to -28 or colder outside. Which it never used to do, but now the winters have extreme colder.Our pumphouse was built at a time when it went to -25. Now with the destabilized arctic air masses in the winter we occasionally get overnight temperatures to -30. We plugged in a small ceramic heater to this magic plug and don’t have to worry about freeze ups.A small step to adapting to climate change.

Turns off and on as described. Works off of extension cord as well as an outlet. Ensure all plugs are connected snuggly or it may not operate correctly. Ground is a bit loose and can pop off of the cube, if placed into a tight outlet or extension cord, when disconnecting. Orherwise, the item works well.

You simply can't beat this item for simplicity and cost-effectiveness. We bought it to keep an insulated shed from freezing so we could store a bumper crop of winter squash inside. Just plug in any non-digital heater (digitally-controlled heaters will often reset and won't automatically start up again) and the device takes care of the rest.We did find that the temperature range to be slightly warmer (6-10 deg Celcius) than advertised (2-7 deg) but this could have been a result of the device being located on a cooler outside wall. If we had wanted it cooler, we could have plugged the device into a short 12 ga extension to move it away from the wall, but the warmer temperature was all right for our purposes.Again, overall, you can't beat the simplicity and price of this solution.