1. Adjustable voltage range: This digital voltage tester can measure voltage range from 12v to 1000v, divided into low sensitivity (12V-1000V) and high sensitivity (70V-1000V) modes, which can be applied to a variety of scenarios and environments. 2. Non-contact voltage tester: When this voltage tester pen approaches a high AC voltage in the specified voltage range, it will flash and emit a beeping sound without touching the object being measured. It is also equipped with beeping sound and LED indicator to support adequate safety measurement applications. 3. LED light and low voltage indicator: This multifunctional voltage test pen has a low voltage LED light and alarm light on the tip. It can automatically remind you to replace the battery in time. In addition, when measuring current and voltage in a dark environment, the strong white LED light can provide illumination so that you are no longer afraid of the dark and the work can run properly and efficiently. When it is not running, it will automatically shut down within 5 minutes to make the 4. Safety sound and light alarm + percentage display: This digital tester uses a buzzer and LED indicator to distinguish voltage frequency. It is designed to hear the noise of medium-sized machinery and equipment. In addition, the digital percentage + analog bar display function allows you to clearly see the value of current and voltage, giving you more reference. The high precision measurement makes your test work more accurate. 5. Light weight and easy to carry: This digital display voltage tester pen is small and light weight. It is easy to store in your toolbox or put in your pocket, backpack and handbag. It allows you to measure current and voltage anytime and anywhere, providing a higher level of convenience.