Eighosee Quartz Movement Watch Tester forButton Battery Tester Quartz Watch Movement Impulse Detector Watchmaker Repair Supply Tool

Features: 1. This is a dual-purpose checker for quartz watches and button batteries. 2. the button and the battery level indicator show the voltage. 3. For button battery checker: place the battery on the battery checker plate to check, make sure the positive (+) terminal is facing down. 4. Simply place the watch on the quartz pulse detector to detect it. 5. The quartz watch detector is compact, easy to operate, and wear-, and has a long service life.