Honeywell Home CG511A1000 Medium Thermostat Guard, Fits Thermostats 5" H x 6" W or Smaller, White

Bought this because as a father and husband I was tired of anyone messing with the thermostat. It was easy to mount to the wall and works as intended. I did eventually give my wife a key but the temps stay where I set them now. A bonus is I see this brand everywhere like hotels and my work.... my key works on other Honeywell covers, not sure if the key is the same on all of them but I find this fact LOL. Bought a 2nd just for the keys because I lost mine before as well.

I was hesitant to buy this because of all the criticizing reviews that stated that it will not stop any adult who is determined to rip or knock it off the wall. That critique is 100% true. I could easily take a hammer, a small pot, just about any blunt object and knock this box off the wall. My father has dementia and was constantly changing the house thermostat settings. After installing this product, my family found that just its presence, and the box locked up, deters my father from changing the thermostat settings. We've realized that he's not so far gone with his dementia that he will consciously perform damage to the house because his stubbornness wants the thermostat set a certain way. So, this product successfully performs its function for our family.

Installs and works as described. Easy to use. Purchased for our new home as our Autistic son loves numbers and likes to play with the buttons. This has SAVED us money. Thank you!

The guards are larger than what the picture had shown. The picture says "Medium" and indicated a more rectangular-shaped box...so I had expected something conforming closer to the shape of my medium-sized Honeywell thermostat. What was sent, and what actually matches the part number is a "Large" square-shaped thermostat guard. I think what me as the consumer was expecting was a medium-sized guard. But what Honeywell was intending was a guard that fits medium-sized thermostats...which it does....and...also fits large-sized thermostats. So, it is actually a large guard. The quality of manufacture is fine. The lock is fine. It is not meant to be a bullet-proof vault. It is only meant to keep most wandering fingers from adjusting the temp. Yes, if you wanted to, you could just pull it off the wall...but if that is your problem, then you have larger problems with your customers. The guard looks nice installed. It is not grossly too big. It was easy to install. Other reviews are correct that it is not "hinged" per se. It has tabs on the top that fit together...but when you unlock it, the cover does just fall right off. I think it's still ok because we are only intending on changing the thermostat twice a year...once for heating mode and once for cooling mode. It is also a great price!

We needed something urgent because of our kids. Our boys are somehow attracted to the ac thermostat and would keep turning the ac off. Our electric bill would go up because this would happen several times a day, several times a month. This product arrived quickly, came with two keys, fits perfectly around our thermostat, and has given us peace of mind. Very durable product and great value for your money.

Works good

This was purchased to keep my 97-year old mother from constantly changing the thermostat up and down causing the emergency heat to activate. It mounted easily and was tamper proof. However, there was not enough ventilation holes or slits in the guard which made the thermostat temperature reading inaccurate. I drilled many more ventilation holes in the top cover (it is plastic and difficult to drill without causing cracks) which helped a little, but did not fully solve the problem. Then I put washers between the guard and the wall on the mounting screws to raise the guard a little over one-eight of an inch from the wall all around which let the air move freely around the thermostat and in and out of the guard. With the washers the thermostat temperature reading with the guard installed matched the temperature reading with the guard removed. The one-eight distance from the wall is still "tamper proof" too. With these modifications the guard has worked great for two years now and my mother's electric bill in winter and in summer was cut in half because she could not raise and lower the temperature up and down many times each hour during the day.

I have a small round thermostat and had a hard time finding anything compatible. The case is very big and deep. Strange design, the top part of the case easily comes undone when unlock in a surprise manner. At first, I thought I broke the case, just to realize it was a poor not well-thought design. Imagine, you unlock the case, opened the case and the top portion of the case came from its plastic hinges as i it got broken, you than have to place the top portion back into hinges and lock the case as the top portion won't stay open in unlock position.

Works great, would recommend.

Exactly as described. Easy to install. Easy to see through and the holes are designed to prevent tampering. I had another one that you could stick a paper clip through to change the temperature. This one is perfect though as the slots are misaligned to you can not get anything in and near the buttons (trust me I tried when I misplaced the key)

stops co worker from occasionally adjusting AC temp.

Me ha gustado pues cumple su función a buen precio. Hay que tener en cuenta que no tiene bisagras. Esto para mi es bueno, porque tengo otras con bisagras y es por donde se rompen asi que me quedo con esta. Hay que tener cuidado porque al abrirlo se despega la cara frontal. También puedes tener la cara quitado para algunas ocasiones y asi no tener la puerta abierta con riesgos.

Utilisé dans un gîte pour empêcher l'accès au thermostat de chauffage. Fonctionne très bien. Le plexi est epais et de bonne qualité.