HoneywellHome CG512A1009 Large Thermostat Guard, Fits Thermostats 8. 25" W x 5. 75" H or Smaller Clear

When your kids won’t leave your heat or air-conditioning alone, lock them suckers out!!! 😂

This was prefect and easy to install! We have a really large (Emmerson) thermostat, and I had bought a couple other "universal large" covers but they where too small. My Mother has Alzheimer's and turns up the heat at 3 am(we live in the desert) to 95'. So this is a great safety measure.

I purchased this to use at my jobsite. Not to protect a thermostat, but to protect the sensor box that controls our double automatic sliding glass entry door. Even though it's about 8 feet off the ground, someone jumped up, took a tool and hit the bottom where the key mechanism is, which broke the acrylic, allowing anyone tall enough or standing on something the ability to stick their fingers in where the chunk of acrylic was broken out, enabling them to maneuver the settings. With the switch in the wrong position, my apartment building residents were put at risk because some smart-aleck would occasionally place the switch in a position allowing the door to open just by sensing someone approaching it, like at a grocery store or other businesses with sliding doors. You don't want that at an apartment building which requires the residents to let their visitors in after their presence is announced at the call box.The previous guard was the medium sized and was installed with the key in the down position as in the product description photo. I had the new one installed key on top instead. I believe that makes this stronger and less resistant to a hit. So far it has worked out very well and is very sturdy.

I installed Honeywell Thermostats at my church so I got this cause it should fit right? Well it does just a decent size bigger all around just fyi. Only issue I had was it comes in a plastic surrounded case with cardboard back like a kids toy would (best description I got, lol). Only reason I say is that casing gave the plastic guard decent scratches on the front before it was cut out of the package. Its a slight annoyance cause you read the thermostat through it and it all will most likely be scratched already cause of the packaging.

This cover fits the large Lennox S40 thermostat nicely. We have two special needs children and this cover should protect it from being destroyed. It feels sturdy and well constructed. I recommend.Update…after a months use, it turns out that the cover interferes with the thermostat’s readings. With the case over the thermostat, it will not function properly and the AC continually will run. The thermostat cover prevents the thermostat from reading the inside temp properly causing the AC to run nonstop. Back to looking for a protective case that does not interfere with the thermostat’s proper functioning.

hAVE A RENTAL HOME WITH POOL AND SPA. GUESTS KEPT TURNING UP THE TEMP ON THE POOL AND SPA AND REALLY BIG ELECTRIC BILLS. WITH THE COVER, I HAVE CONTROL AND IT SO UNNOTICEABLE.

Too big

We moved into a home with a very large thermostat mounted on the wall in our kids’ room. They kept messing with it and we were afraid they’d eventually break it or the unit, so we had to resort to a lock box. It was hard to find one big enough with decent reviews. So for other shoppers- this one works exactly as you would want. Sturdy enough and keeps unwanted fingers off the buttons.