Large Thermostat Lock Box Cover with Key, Clear Thermostat Cover with Lock Compatible With Honeywell Home Thermostat On Wall, AC Lock Box Cover with Key Fits Thermostats 5"H x 6" W or Smaller

My CHILD would not stop messing w the thermostat and this works like a charm! Easy to install and locks it up! Does not affect airflow. Easy yo read digital thermostat through case. Well worth the price.

I bought this thermostat lock box to stop my little ones from raising the thermostat every day as they keep turning up the air conditioner and increasing my utility bills. These thermostat covers are great options if you don’t want to pay for overuse of electricity or gas.Complete with all the hardware you need and fits my thermostat perfectly . What I love most about this thermostat cover with lock is that you don’t have to do anything but attach 4 screws to the wall. The back is completely open, you can just place it around without removing anything. The quality of this thermostat cover seems to be very good. It has hinges, which is very convenient to use. The stability of the lock is also very good. This thermostat lock box is a money saver for me. No more worries~

Good douche bag deterrent. Some people think that if they set the thermostat at work to 50 degrees that it is a good idea and everyone will be happy and cool. I think I lock the thermostat so douche bags don't do that. Nice quality... would buy again since there is a never ending supply of douche bags.

Works good saves on electric bill

Good 👍

Great quality for the price! Mounted well and is "secure" make sure you install it with the hinge on left side so the lock hook swings down. It's not meant to be a vault, it's meant to keep honest people honest and prevent the casual adjusting of thermostat. It's better than the models you find at home Depot and the hinge is better than the hook that most have.

Purchased this for my grandparents my grandpa had a stroke and now messes with everything this safely keeps him out and I can go adjust it when he wants it changed

The lockbox definitely works as expected! But is not a very affective long term solution. The boxes were easy to install and while a bit flimsy at the hinges it's not a big deal as it does the job. The box has vents all the way around the edge that sits by the wall to let air in. This is where my complaint comes into play. I have a room mate that kept messing with the upstairs AC temperature when I wasn't home and it has ran up the power bill. I have the ability to see daily power usage on my power company's app and I could see where the power would spike over 20 kWh on average for the day. I have separate upstairs and downstairs AC unit so I bought 2 of the boxes. The upstairs seemed to work perfectly fine but the downstairs one for whatever reason would constantly run. I waited 3 days to see what the usage would be like and it remained over 20 kWh higher than normal power usage so I took the downstairs box off. The power usage seemed to settle and go back to where it was normally within one day. I would say this box works decently as expected. My downstairs situation may be a different case, but overall the box does what it's supposed to. I'd give this a B rating overall. Affordable, easy to install, and works relatively well.