1The multimeter adopts the touch design for the keys, which is more safe and reliable. When using the touch, every time the key is triggered, the interval time is preferably greater than 1 second to avoid false triggering. 2Backlight, enjoy the free of measurement, specially designed for measurement in dark or harsh environment, making measurement easier and more convenient. 3The machine is integrated with the meter, the meter pen and the host are integrated, which can be measured at any time, which is more convenient. The NCV non-contact voltage detection has a built-in high-sensitive voltage probe, and the screen displays the signal strength. 4Triple display LCD display; main display, secondary display, analog bar, smart, large screen, triple display, lighting, touchtype completely automatic identification digital multimeter. 5Enter the LIVE live wire measurement, the LIVE characters will be displayed on the LCD. Use a red watch to approach the live wire test point and make reliable contact with the point. The black watch end is suspended and does not touch any test point. Item Type: Touch MultimeterMaterial: ABSMultimeter Size: Approx.13.7 x 6.7 x 1.7cm / 5.4 x 2.6 x 0.7in (manual measurement, for reference only)Battery Type: 2 AAA batteries (not included)Working Environment: 0~40, relative humidity <80%Measurement Method: Double integral A/D conversionSampling Rate: About 3 times/sec 1 xMultimeter1 xHand Rope1 xUser Manual 1. The backlight is turned off after power& 8209;on. When needed, you can press the HOLD key for more than 3 seconds to turn on the backlight, and the backlight will automatically turn off after 10 seconds. When the user is constantly using, the meter will not turn off the power; when it stops using, it will automatically shut down within 5 minutes; truly intelligent operation does not shut down, please refer to the shutdown instructions for details.2. The watch adopts touch design for the keys, which is safer and more reliable. When using touch, every time the key is triggered, the interval time is preferably greater than 1 second to avoid false triggering.3. When you lightly touch any key, the touch key and the panel light up in the on state, and you can switch the function keys. After 5 seconds, the touch key and the panel light are off and in the locked state.