Specification: Material: Plastic. Color: Red, Black. AC voltage range: 12-1000V. Frequency: 50Hz or 60Hz. Net weight: 50g. Size: 165x25x28mm or 6.5x0.984x1.1 in. Power Mode: Dry Cell Type. Battery Type: 2 x 1.5V Aaa. Batteries Included: Yes. Assembly Required: No. Special Features: Mildew resistant, Ok to wake, Removable Cover. Recommended Use: Blackout, Manufacturing, Electrical, Solder. Alarm method: Sound and light alarm and red and orange indicator lights. Display Type: LED. Measurement Accuracy: 0.1. Features: Breakpoint Teest: Wide application on wires, cables, string, circuits, etc.. Red pen function: With laser dots, target locking is more convenient and fast, only the upgraded model has this function. Package included: 1 x Voltage Tester Pen