1. The digital LCD screen provides clear and accurate data display, with a maximum display value of 1999. 2. This instrument offers stable performance, high precision, and high reliability, featuring automatic polarity display and low voltage indication. 3. It's a tool with superior performance and a perfect instrument for laboratories, factories, radio enthusiasts, and families. 4. The electronic multimeter is an electronic instrument used for electrical measurements. It measures voltage, resistance, and current. 5. Portable design: it is small in size, light in weight, and can be put in your pocket for easy carrying. Specification: Item Type: Multimeter Polarity: Automatic polarity display Working Environment: Temperature 0 ~ 40 Celsius, relative humidity less than 70% Storage Environment: - 15 ~ 50 Celsius Power: 6F22 model, carbon battery type (non-rechargeable), (battery not included) Color: black + red Material: plastic Package Contents: 1 * Multimeter 2 * Test leads Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is +/- 1-3 cm.