Feature:2. Easy to use, electronic battery test instrument, wide range of use, small in use.3. Suitable for watch makers and watch repairing workers to use, practical and wonderful tool.4. Exquisite workmanship, no scratching for precious watch surface.5. Mainly used for easily testing watch battery to check the battery condition.Spec:Condition: NewItem Type: Watch Battery Tester Material: Plastic Usage:1. Keep the polyline marks of the range switch in line with the marked voltage and model of the battery you want to check.For example, to check the 1.5V TYPE C battery, move the switch to the opposite side of the 1.5V AA-C label.Clamp a 9V rectangular battery and aim the switch at 9V.If you want to check for silver oxide or alkaline button batteries.Move the switch to the 1.5V button unit.If the button battery is lithium, position switch lithium 3V.To test a 1.25V nickel-cadmium battery, use 1.5V AA.C.Position D and read the lower nickel-cadmium scale. The current number in the range is the load current drain placed on the battery during the inspection.Note: If the adjusted switch position is not prepared, the test will be inked and may damage the tester.2. Touches the red probe tip to the positive battery terminal and the black probe tip to the negative E battery terminal.Note: It is important to correctly identify the battery electrode before testing.Use the following method to handle most batteriesPlace the negative side of the battery on the negative column and Touches the positive side of the battery with the tip of the red probe.To examine a 9V rectangular battery, position the battery terminals so that they are in contact with the 9V positive and negative terminals on the battery tester.To check the button battery, ins