1.Testing display current, voltage and power ( power factors or frequency) together.
2.With power and current limits setting and judgment.
3.Locking, silencing, alarming function.
4.Smart crate, powerful function, Max. voltage range 300V, Max. current range 20A.

Voltage range: 150V/300V;Automatic range;allow Max. input >/=350V
Current range: 2A/20A;Automatic range;allow Max. input >/=22A
Input impedance: voltage >1Mohm, current <0.02ohm
Frequency range: base frequency 25Hz to 2KHz
Power factor: 0 to +/-1.000
Power: 20Ax300V; Max.readout 99999
Display refresh rate: about 3times/S
Power supply: AC220V+/-10% 50Hz
Dimensions: 270x225x90mm
Weigh: about2.5kg