Display mode: LCD screen Sampling rate: approximately 3 times per second. Display out of range: inchOLinch is displayed at the highest position. Working environment: (0-40), relative humidity andlt;80%. Power mode: one AAA1.5V battery (included). Pen-type smart multimeter, you can select functions without turning the dial, and the meter will automatically identify and measure according to the input voltage/resistance/difference. The machine has stable performance, high precision, high reliability, clear reading and overload protection function. The meter is powered by 1.5V AAA battery with large LCD display and boost power supply. When measuring voltage, do not input the limit voltage higher than the effective value of DC1000V or AC 700V. When changing function and range, the pen should leave the test point. Choose the right function and range, and pay attention to the wrong ones. Automatically identify and measure input voltage, resistance, capacitance, etc. Supports voltage measurement non-contact ion, live wire detection, phase sequence measurement, etc. This pen-shaped multimeter has a maximum display of 6000 counts. Scope of delivery: One piece