Features:_x000D_ _x000D_ It is made of premium material,durable and has long service life. _x000D_ It is stable and has great performance while using. _x000D_ Professional and practical design with beautiful appearance, easy to carry and use. _x000D_ The meter is an accurate and professional device for measuring sine wave circuit. _x000D_ The CT of the meter is only connected to the CT socket and does not require grounding or equipment housing. _x000D_ _x000D_ Specification:_x000D_ Measuring Accuracy:1%+-2 Digits_x000D_ Screen:0.39'' LED Nixie Tube Screen,Voltage-Red,Current - Green_x000D_ Measuring Speed:2 times/s_x000D_ Size: Approx. 70*40*30mm/2.76*1.57*1.18in_x000D_ Installation Size: Approx. 68*38mm/2.68*1.5in_x000D_ Supply Cord Length: Approx. 150mm/5.91in_x000D_ "Split" Transformer Lead Length:Approx. 100mm/3.94in_x000D_ Voltage Measuring Range:60~500V_x000D_ Voltage Resolution: 1V_x000D_ Current Measuring Range:0~50A_x000D_ Current Resolution: 0.1A( Transformer bore:About 15mm)_x000D_ Extreme Working Condition:_x000D_ Working Temperature:-10~50_x000D_ Working Humidity:10~80%(No condensation)_x000D_ Working Pressure:80~106KPa_x000D_ Sunlight:No direct exposure_x000D_ _x000D_ Package List:_x000D_ 1*Voltage Ampere Meter_x000D_ _x000D_ 1*Mutual Inductor _x000D_ _x000D_ _x000D_ Note:_x000D_ _x000D_ The meter can only be used to measure 50 / 60Hz sine wave circuits.the meter will be damaged while measuring square waves, inverter output and sine wave correction. _x000D_ First connect the current transformer to the meter. Second, connect the meter to the voltage test line. After connecting, do not touch any part of the back of the meter to avoid electric shock. _x000D_ The connection between the voltage input and the current transformer can cause damage to the meter. Make sure the voltage and current transformer are connected correctly.