ITEM NAME:Digital Voltage Tester Pen Detector Volt Tester AC/ DC 12-250 V with LED Di C2E4 Digital Voltage Tester Pen Detector Volt Tester AC/ DC 12-250 V with LED Di C2E4 Measuring range: 12 220V 5 phases: 12V, 36V, 55V, 110V, 220V The product can be DC/ AC 12 220V checked directly. Battery is unnecessary. Fast Track and testing. Length: 13 cm Notes: Push the button, release the voltage tester which analyzes keys, then the corresponding data are displayed. If the measured value does not reach 70% of the maximum value, the LED indicates show the low level. Package Contents: 1 x Voltage Tester Pen 1 x Cloth Bag Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm..The product can be DC/ AC 12 220V checked directly. Length: 13 cm.