How to properly maintain a caliper to extend its service life?

Firstly, avoid dropping or collision, as this can damage the precision mechanism. After use, clean the measuring surfaces and the guide rail with a lint-free cloth, then apply a thin layer of anti-rust oil to prevent corrosion. Store the caliper in a dry, dust-free case, away from high temperature, humidity, and magnetic fields. For digital calipers, remove the battery if not used for a long time to prevent battery leakage from damaging the electronic components.