Features Amorphous alloy magnetic core: AC/DC current clamp meter multimeter adopts amorphous alloy magnetic core, which has the advantages of high performance and low loss. Various current test ranges: CP-05+ AC/DC clamp current probe has a variety of current test ranges, 4A, 40A, 200A, 200-400A test ranges are optional to meet your various needs Test range: CP-05 current probe test range is 1mA-400A, power supply 9V 6F22 battery (not included), working temperature 0℃ to 50℃, working humidity 15% to 70% RH Automatic zero adjustment on power-on: AC/DC clamp current detector is easy to use, simple to operate, automatic zero adjustment on power-up, relative zero adjustment Low noise: AC/DC clamp current detector has low noise during use and high detection accuracy, avoiding disturbing others during work and creating a more harmonious environment for you Features: Adopt of amorphous alloy core, with high performance, low loss   Various current test range, 4A, 40A, 200A, 200-400A test range are available Band wide up to 200KHz, low battery indication  Auto zero at power on, relative zero correction  Low noise level, and high detection accuracy   Specification: Model CP-05+ Test Range  1mA - 400A Bandwidth  DC - 200KHz (±3dB) Jaw Size  23mm (max) Auto Zero at Power-on yes Power Supply  9V 6F22 Battery(not included) Operating Temperature  0℃ to 50℃ Operating Humidity  15% to 70% RH DC Current Range  AC 4A AC 40A AC 200A AC 200A - 400A Accuracy  ±2.0%rdg ± 5-digit ±3.0%rdg ± 5-digit Sensitivity  1mV/10mA 1mV/0.1A 1mV/1A AC Current  Range  DC 4A DC 40A DC 200A DC 200 - 400A Accuracy  ±1.5%rdg ± 5-digit ±3.0%rdg ± 5-digit Sensitivity  1mV/10mA 1mV/0.1A 1mV/1A Dimension  18.5*6.8*2.5cm/7.3*2.7*1in Weight  272g/9.6oz Package list: 1 x AC/DC Clamp Current Probe(battery not included) 1 x Pouch 1 x User Manual Package List