DT399A Digital Clamp Meter Mini Ammeter Clamp Multimeter Small Current Meter Voltage Current Resistance Tester Basic function Range Precision Resolution DC V 200MV 0.5%+4d 0.1MV 2V 1MV 20V 10MV 200V 100MV 600V 1.0%+6d 1V AC V 2V 0.8%+10d 1MV 20V 10MV 200V 100MV 600V 1.0%+10d 1V 200 0.8%+5d 0.1 2K 0.8%+4d 1 20K 10 200K 100 2M 1K 20M 1.2%+4d 10K AC A 2A 3.0%+8d 0.001A 20A 2.5%+8d 0.01A 200A 2.5%+8d 0.1A 500A 3.0%+10d 1A Special function Resolution Description Diode 1MV Open circuit voltage: 1.4V Forward voltage drop is 0.5~0.8V On-off test 0.1 The buzzer sounds below about 50 Overload protection yes General characteristics MAX display 1999 test method Double integral A/D conversion Conversion rate 3 times / sec Overrange display The highest digit displays "OL" Low voltage Power symbol appearsabout 2.4V Clamp open 32mm Battery 1.5V AAA*2(NOT include) Size 138mm*62mm*26mm Weight About 140g