Introduction: A multimeter is one of the most fundamental skills in electronics. It's a great assistant for testing and troubleshooting faults found in electronic equipment. This digital multimeter voltmeter ohmmeter ammeter will meet your needs. Made of durable materials, it is robust and durable for long-term use. In addition, it can also be used to measure the remaining capacity of rechargeable batteries to check if the battery is fully charged (battery not included). Introduction: On/Off To save energy, please turn the switch to the \"OFF\" position when not in use. The hold switch is used to retain the display reading when the instrument is disconnected from the object being measured. Backlight When the backlight is on. It must be manually turned off by the user. (This feature has been modified according to our wonderful customers' suggestions, and it is actually more convenient and practical. Thank you all.) When the BLCTR switch is turned on, the backlight lights up. It must be turned off and on again to continue switching. \"COM\" socket: common socket. \"VmA\" socket voltage, resistance, current not exceeding 200mA, temperature and battery test socket. The \"10ADC\" socket is used to input current exceeding 200mA. Features: Dimensions 138 x 74 x 34mm Specifications: 1. DC voltage: 200mV-600V (0.52dgts) 2. AC voltage: 200/600V (1.210dgts) 3. DC current: 200uA-10A (1.0%+2dgts) 4. Resistance: 2002M (0.83dgts) 5. Power supply: 9V, 6F22 (not included) 6. Maximum display: 1999 7. Diode: Yes 8: Continuity buzzer: Yes Note: The data are all manually measured, please allow 1-3 cm error; due to the difference in light and display, there may be some color difference, please refer to the actual product received.