Features: This digital voltage tester can measure voltage ranges from 12v to 1000v, low sensitivity (12V-1000V) and high sensitivity (70V-1000V) modes, which can be used to a variety of scenarios and environments. When this voltage tester pen approaches a high voltage in the specified voltage ranges, it will flash and emit a beeping sound without touching the object being measured. This multifunctional voltage test pen has a low voltage LED light and alarm light on the tip.can automatically remind you to replace the battery.with LED flashlight and low battery indication,automatically shut down within 5 minutes to make the device last longer. This digital tester uses a buzzer and LED indicator to distinguish voltage frequency.the digital percentage + analogs bar display function allows you to clearly see the value of current and voltage. This digital display voltage tester pen is small and light weight. It is easy to carry. The integrated body with the sealing rings design of the battery cover can achieve IP66 waterproof rating, so you do not have to worry about water and dust getting into the machine. Specifications: Material:ABS ACVoltage Ranges: 12V-1000V Frequency: 50Hz/60Hz Alarm Mode:Sound and light alarm Flashlight:YES Automatic Power Off:No operation, no sensing signal will shut down automatically in about 5 minutes. Low-Battery Indication:YES Power Supply:2x1.5V AAA Batteries (Battery is not include) Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Digital Voltage Detectors