Review on 📐 YOTOM Fluorescent Yellow Bubble Spirit Level: 66x10mm Circular Surface Level Inclinometers - Top-Notch Accuracy by Tim Hollins

Not sure how accurate these little things are, but they are pretty easy to use and give you left/right and front/back information in one device. We bought these to level our small RV, basically to make sure the fridge was level. I just put one on the top shelf of the fridge and we adjust the leveling blocks until we get the result we want. Of course you don't want to damage an expensive Dometic fridge that runs on battery/solar, generator or propane. Happy camping novice!