100% perfectly tailored to fit the Xiaomi Temperature and Humidity Sensor 3 Mini 

Compatible with transparent drying cabinets—no need to drill holes. The mount is securely held in place via double-sided magnetic attachment using at least four 10x3 neodymium magnets; if the partition thickness is too great, simply increase the number of neodymium magnets for added stability.

Can also be used externally for everyday indoor applications.

After four rounds of iterative testing and printing, the filament consumption came in at 23 grams, with a total print time of 1 hour.

Neodymium magnets are readily available for purchase on Pinduoduo and Taobao—50 magnets can be yours for as little as 10 yuan.