[Smart Mode]: This smart digital multimeter can automatically measure ac and dc voltage, resistance and continuity with the best resolution. [Open Jaw Design]: The digital multimeter tester with open jaw design for easily measurement in tight space, such as inverter, hub or intensive line. [3-IN-1]: The pocket multimeter can not only be used as a dc ac amp clamp meter, but also can be used as a professional voltage tester. [Amp Automatically Identification]: The digital clamp multimeter can automatically measures dc and ac current with jaw, the measurement can be done manually as well. It support to zero out the readings influenced by earth's magnetic. [Rechargeable]: The digital voltmeter comes with a rechargeable battery & charging cable, ensuring that you never have to worry about running out of power during your measurements. Specifications: Display: 4000 counts DC current: 1-100A 0.1A (2.5%+5) AC current: 1-100A (40-100 Hz) 0.1A (2.5%+5) DC voltage: 0.8-3.99V 0.001 V (0.8%+3); 4-39.99V 0.01 V (0.8%+3); 400-399.9V 0.1 V (1%+5); 400-610V 1 V (1%+5) AC voltage: 0.8-3.999V 0.001 V (1%+3); 4-39.99V 0.01 V (1%+3); 40-399.9V 0.1 V (1.2%+5); 400-610V 1 V (1.2%+5) Resistance: 5-3999 1 (1.2%+3); 4K-39.99K 0.01K (1.2%+3); 40K-399.9K 0.1K (1.2%+3); 0.4M-3.999M 0.001M (2%+10); 4M-64M 0.01M (2%+10); Continuity: The beeper sounds when resistance less 50 Temperature: 0-50/32-122 2/ V-Alert: High/medium/low mode Live wire check: Yes Power: rechargeable 3.7 V Li-ion battery (built-in) Colour:Black Material:ABS Package Contents: 1 x Digital Clamp Meter 1 x Test Leads 1 x Charging Cable 1 x English User Manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.