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

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.

Keeps my sister from turning the ac down to 60 at night.

I needed a cover for my thermostat to keep people from adjusting it, unfortunately this one was too narrow for my unit, so I had to return it. It's a great idea to measure the unit before ordering and not assume because it looks standard, any cover will fit. Overall this was a nice, sturdy cover and a good value, just not the right size for my needs.

Great so happy I purchased it it keeps my elderly grandpa from turning up thermostat when we all sleeping in middle of the night too 90 degrees

It prevented passive-aggressive tenants from fighting over shared office heating and cooling. Internal conflicts averted - blame the key holder! (Me!)

Worked great for what I needed

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.