Package Include 1 x Clamp Digital Multimeter 1 x Test leads 1 x User Manual Characteristics - Measuring Voltage Range: DC voltage 600V electrical multimeter - Auto Ranging: Yes Digital Multimeter - AC Voltage: 450V Multitester - AC Current: 20-200-400A Digital Test Tool - Material: Plastic, Electronic Parts Meter Equipment - Display Type: Digital Only mini multimeter - Buzzer Function: Yes - Voltage Measurement: Around 10MW - Model Number: ST201 - Battery Type: 2 x 1.5V (AAA Battery) (Not Included) - DIY Supplies: Electrical - Operating Temperature: 0-50 - Size: 20.5x5x2.5cm / 8x2x1inch(LxWxH) - Power: 3V Battery (AAA x 2)(NOT INCLUDED) - Data Hold Function: Yes - Weight: 220g - Cable length: Approx. 0.8M - Buzzer Function: Yes - Max LCD display: Yes - Measuring Current Range: AC current 20-400A - Maximum display: 1999 Counts - Battery Type: 2 x 1.5V (AAA Battery) (Not Included) - Measuring Resistance Range: 200K - Dimensions: 205 x 5 x 25 mm - Color: As shown - Resistance(ohm): 200K - Measuring Inductance Range: No Goods Descriptionclamp meter dc current Clamp ammeters referred to as clamp meter.Digital Test Tool Straight through current core made of movable opening, and a clamp on ammeter, named.digital multimeter tester The utility model relates to a portable instrument which can directly measure the AC current of a circuit without disconnecting the circuit.tester The work is mainly composed of an electromagnetic current meter and bushing type current mutual inductor