Replacement Battery Door for Cheap Thermometer

thingiverse

This is a battery-door replacement cover for a cheap eBay/Amazon thermometer/hygrometer unit. I broke the two little plastic nubs that clip into the end so I needed a replacement. This is for units that take 2 LR44 button cell batteries. Mine measures roughly 48mm x 29mm x 15mm (L x H x D) Some sanding may be required for the ends of the nubs and the mini clip for the best fit. The photos are for the original model with the nubs extending 1mm from the body, however, they needed to be sanded down little by little until there was enough room to slot into the housing. Although, this seems to have made a very secure fit and there is no way it is coming out without breaking the nubs again. I also included a model with the nubs reduced to 0.5mm, making for an easier fit without as much sanding although probably not as secure as a sanded 1mm.