Clamp ammeters referred to as clamp meter. The work is mainly composed of an electromagnetic meter and bushing type mutual inductor. Straight through core made of movable opening, and a clamp on ammeter, named. The utility model relates to a portable instrument which can directly measure the of a circuit without disconnecting the circuit. Features - Color: Yellow. - Material: Plastic, Electronic Parts. - Size: 15 x 7 x 3cm / 5.9 x 2.8 x 1.2inch(LxWxH). - Product Name: Clamp ammeters. - Voltage: 600V, ±1.0%. - Voltage: 450V, ±1.2%. - : 20-200-400A, ±2.0%. - Resistance(ohm): 200KΩ, ±1.0%. - Function: Yes. - Max LCD display: Yes. - Data Hold Function: Yes. - : 1999. - Battery Type: 2 x 1.5V (AAA Battery) (Not Included). - Weight: Approx. 115g. - Cable length: Approx. 0.7M. - Digital multimeter with plastic . - High sensitivity voltage and measurement. - Fit for schools, factories, families, and amateur wireless lovers. - Mini and compact design, more convenient to carry and use. - Data hold and LCD display, easy and clear to read. - On-off warning and diode testing functions. - indication. - Function of overload protection. Package list: 1 x Clamp Digital Multimeter 1 leads 1 x User Manual