1、Detachable display makes measurement more convenient and safe. The screen can be placed in a convenient and safe place within 10m away from the meter body. 2、The iFlex flexible current pliers extend the measuring range to 2500 A AC, with higher display flexibility and the ability to measure conductors of irregular size. 3、The patented inrush current measurement technology can filter out noise and accurately capture the motor start current. 4、381 high-voltage clamp ammeter with integrated low-pass filter and the latest technology of signal processing function, can be used in a high noise electrical environment, while providing stable reading. 5、Ergonomic design, more suitable for one-handed operation. Features: Detachable display makes measurement more convenient and safe. The screen can be placed in a convenient and safe place within 10m away from the meter body. The iFlex flexible current pliers extend the measuring range to 2500 A AC, with higher display flexibility and the ability to measure conductors of irregular size. After the CAT IV 600 V, the CAT III 1000 V safety rating. The patented inrush current measurement technology can filter out noise and accurately capture the motor start current. 381 high-voltage clamp ammeter with integrated low-pass filter and the latest technology of signal processing function, can be used in a high noise electrical environment, while providing stable reading. Ergonomic design, more suitable for one-handed operation. Readable large screen, automatic range recognition. 381 clamp multimeter has a true effective AC voltage and current measurement function, can be used to accurately measure non-linear signals. The maximum/ minimum/ average recording function automatically captures changes. The reading keeping function, the backlight lighting function, is more suitable for the bad light occasion. Zero-clearing function, the display screen can be zero-clearing, DC measurement. Specification: AC current through the clamp: Range: 999.9A Resolution: 0.1A Accuracy: 2% ±5 bits (10-100 Hz) 5% ±5 bits (100-500 Hz) Crest factor (50/60 Hz): 3 (500A hours) 2.5 (600A hours) 1.42 (1000 A hours) C.F. > 2, increase 2% Ac current through the flexible current probe: Range: 999.9a / 2500 A (45 Hz -- 500 Hz) Resolution: 0.1A / 1A Accuracy: 3% ±5 bits Crest factor (50/60 Hz): 3.0 (1100 A hours) 2.5 (1400 A hours) 1.42 (2500 A hours) C.F. > 2, increase 2% DC current: Range: 999.9A Resolution: 0.1A Accuracy: 2% ±5 bits AC voltage: Range: 600 V /1000 V Resolution: 0.1V / 1V Accuracy: 1.5% ±5 bits (20-500 Hz) DC voltage: Range: 600.0V /1000 V Resolution: 0.1V/ 1V Accuracy: 1% ±5 bits Frequency - through the jaws: Range 5.0 -- 500.0 Hz Resolution: 0.1Hz Accuracy: 0.5% ±5 bits Trigger level: 5-10 Hz, 10 A 10 -- 100 Hz, 5 A 100 -- 500 Hz, 10 A Frequency (via flexible current probe) : Range: 5.0 to 500.0 Hz Resolution: 0.1hz Accuracy: 0.5% ±5 bits Trigger level: 5 to 20 Hz, ≥25 A 20 to 100 Hz, ≥ 20 A 100 to 500 Hz, ≥25 A Resistance: Range: 600Ω/ 6kΩ / 60kΩ Resolution: 0.1Ω/ 1Ω/ 10Ω Accuracy: 1% ±5 bits Battery: 3* AAA battery (NOT included) Package List: 1* IFlex flexible current pliers 1* Battery instruction card 1* User manual 1* F38 soft package 1* TL75 test pen 1* AC72 crocodile clip (2 black ones and 1 red ones) 1* Calibration specification declaration 1* Appendix manual 1* Product registration card