Led tester pen

LED Test Pen Product Details:Material: PC, Chrome Vanadium Steel Details: Led High Brightness Test Pen Weight: About 26 g Measuring Range: Voltage 24-250 V Battery Type: 3 x LR41 Button Batteries (Included) Package Includes: 1 × Electricity Pen Note: There Might Be An Error Of 1-3 Cm Due To Manual Measurement, And Slight Color Differences May Occur As A Result Of Varying Lighting And Monitor Effects.