Welcome to Lenoviva technology co.， LTD store Electric Power AC/DC Digital LED Light Indicator Voltage Detector Pen Test Pencil Neon-electroscope Wholesale Features: Brand new & high quality. Pen-sized，handy tester for quick and easy AC/DC voltage testing. Detection of AC and DC voltage， and sub-mode LCD display (shows the maximum value for the reference) DC Voltage: DC 12/36/55V AC voltage: AC 70~250V Check the wires with a variety of home appliances through the circuit， to distinguish zero-phase line to find breakpoint Can also detect the battery's power situation Blue LED inside， measurement can be identified clearly even in dark areas Suitable for general family， hydropower industry， refrigeration industry， automobile industry， personal DIY. Dimensions: 16cm x 2.5cm x 1.5cm. Power:3 x AG3 button cell (included). Weight: 34g Package Includes: 1 x AC/DC voltage detector NO Retail Box. Packed Safely in Bubble Bag.