Specification: Condition: 100% Brand New Item 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 batteries Place 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, insert the battery into the grooves on the right side of the tester with the negative electrode upwards.Then press the brown switch Caution: Do not damage the battery Do not press the brown switch when using the probe to detect button batteries When using 9V rectangular or pushbutton battery terminals, do not allow the red probe to Touches the black probe or negative electrode Package List: 1 x Watch Battery Tester