Features:Hand-held clamp structure design, especially for on-site power equipment and power line test and maintenance.It has powerful measuring and data processing software, and complete to measure, calculate and display of the 8 parameters: Voltage, Current, Active Power, Power Factor, Apparent Power, Reactive Power, Active Energy, Frequency.High measurement accuracy, stable performanceDouble display two parameters on each menu and store 28 groups of measurement parameter.Large LCD display, multifunctional button control, simple to operateWith PC RS232 interface and windows graphics software.Automatic shutdown, automatic ranging, maximum/minimum, data holdBacklight display, undervoltage indication, true RMS measurement, 9999 count displaySpecifications:Brand:PEAKMETERJaw opening size: R50mmData storage: 28 groupsDisplay: 9999 countInterface:Rs232 AC voltage: 0.1 ~ 600 v(1.2% + 5)AC current: 0.1-1000 + / - (2.0% + 5)Active power: 0.1kW~600kW (3.0%+5)Apparent power: 0.1 kva ~ 600 kva(3.0% + 5)Reactive power: 0.1kVAr~600kVAr (4.0%+5)Power factor: 0.3 ~ 1(2.0% + 2)Power: 0.001kWh~10000kWh (3.0%+2)Frequency: 20 Hz ~ 1000Hz0.5%Power supply: 4 x1.5v AA battery (Not included)Safety category: CE cat.III 600V RoHSProduct size: 303*107*58mm/11.93*4.21*2.28inWeight: 1469gPackage includes:1 x MS2203 Clamp Meter(batteryNot included)2 x test leads 4 x crocodileclips1 x RS232 cable1 x Software CD1 x black bag1 x strapNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering..