Quartz Pulsed Watch Movement Tester Watch Button Battery Level Checker Tools for Watchmakers 

Size: 120 x 63 x 18mm

Battery: Two AAA(Not included)

This is a dual purpose checker, it checks both quartz watches and button batteries.

Simply put the watches on Quartz Impulse Checker to tester.

For Button Battery Checker:

Put the battery onto the battery checking plate position for testing, ensure positive (+) side is downward.

Press down the button, battery level lights will show the voltage.

Yellow light = Need to Renew, the voltage is weak.

1st green light = Low, 1.05 volt.

2nd green light = Good, 1.55 volt.

3rd green light = Good, 3.00 volt.