Features 1、High performance, it also has the high reliability, high safety, automatic measuring range, the hand‑held clamp meter and so on characteristic . 2、Has a large screen digital, full range overload protection, data hold, undervoltage indication, automatic shutdown function. 3、True RMS measurement can accurately measure frequency voltage, non sinusoidal voltage, and the surge current can measure the surge current RMS. 4、Suitable for variable frequency power supply, air conditioning and refrigerator and others refrigeration equipment, and motor performance testing, etc. 5、DC current range function is widely used in electroplating, dc welding machine, auto detection and all kinds of DC current measurement occasion which over 500mA. Specification Condition: 100% Brand New Item Type: Clamp Meter Material: ABS Color: As shown in the picture Basic function Range Resolution Accuracy DC Voltage 400mV 0.1mV ±(0.8%+2d) 4V 1mV 40V 10mV 400V 100mV 1000V 1V ±(1%+3d) AC Voltage 400mV 0.1mV ±(1.2%+5d) 4V 1mV 40V 10mV 400V 100mV 700V 1V ±(1.5%+5d) DC Current 40A 10mA ±(2%+10d) 400A 100mA ±(2%+5d) 1000A 1A AC Current 40A 10mA ±(2%+10d) 400A 100mA ±(2%+5d) 600A 1A Resistance Ω 400Ω 0.1Ω ±(1%+5d) 4KΩ 1Ω 40KΩ 10Ω 400KΩ 100Ω 4MΩ 1KΩ 40MΩ 10KΩ ±(1.5%+5d) Capacitance 10nF 0.001nF ±(3%+5d) 100nF 0.01nF 1uF 0.1nF 10uF 1nF 100uF 10nF 1000uF 100nF 10mF 1uF ±(5%+5d) Frequency 10HZ 0.001HZ ±(0.5%+3d) 100HZ 0.01HZ 1KHZ 0.1HZ 10KHZ 1HZ 100KHZ 10HZ 1MHZ 100HZ 10MHZ 1KHZ Duty cycle 1%~99% 0.001 ±(0.5%+3d) Temperature -50-300℃ 1℃ ±(1%+4d) 301-1000℃ 1℃ ±(1.9%+5d) -58-600°F 1°F ±(1.2%+6) 601-1832°F 1°F ±(1.9%+6) Input impedance About 10MΩ Auto range Support Manual range Support True RMS Support Input protection Support Auto power-off About 10 minutes Diode test It can measure the LED working voltage below 3V Duty cycle measurement Support Voltage frequency measurement Support NCV (charged) measurement Support On-off (buzzer gear) Support Low voltage indicator Support Data hold Support Jaw size 52mm/2.05in Surge signal measurement Support Power supply 1x6F22 9V dry battery (not included) Package List 1 x Clamp Meter(Battery Not Included) 2 x Test Leads 1 x Thermocouple 1 x Cloth Bag 1 x Instruction Manual