Feature: 1. Demagnetiser: The watch demagnetiser uses AC power to generate alternating magnetic fields to eliminate the effects of magnetic fields on the watch, thus reducing time errors and extending the service life of the watch, and enhancing the user experience. 2. Detecting the Movement: With the built in quartz tester function, users can check the working status and accuracy of the quartz movement of the watch at any time, which helps users find and solve the movement problems in time to ensure the normal operations of the watch. 3. Measurement of Battery Power: Use the battery tester to check the remaining battery level so as to replace the battery in time. It can avoid the sudden failure of the device due to battery depletion, which brings inconvenience to our work and life. 4. Adjustable: The watch timer has the function of adjustable demagnetisation speed, we can set the most suitable demagnetisation speed according to the specific conditions of the watch, deal with the maintenance of the watch more effectively, prolong the service life of the watch, more practical and convenient to use. 5. Convenient: The upgraded battery tester eliminates the need to open the watch case during the pulse test, avoiding unnecessary damage to the watch. It not only improves the convenience of testing the battery, but also protects the integrity and sealing of the watch. Specification: Item Type: Watch Movement Pulse Tester Material: ABS Battery: 2 x AA Batteries(not included) . Package List: 1 x Watch Battery Tester Tool