Specifications: Function: Automotive DC dark current, leakage current, etc., other AC and DC current, leakage current measurement power supply: Zinc-manganese dry battery 6F22 9v, continuous use for 30 hours Test method: Clamp CT, non-contact measurement Jaw size: 16mm × 18mm Range: 0mA - 60.0A AC/DC Resolution: 1mA AC/DC Accuracy: ± 2% rdg soil 5dgt (23 & 8451;± 5 & 8451;, less than 75% rh) Display mode: 4-digit LCD meter Dimensions: Height, width, thickness: 215mm×61mm×32mm LCD size: 35mm×21.5mm; Display range: 32mm×15mm Sampling rate: 2 times/second Frequency response: AC: 45Hz~400Hz Polarity indication: DC current detection number Automatically recognize and display "_" when the Print communication parameters: baud rate 9600, data bit 8, stop bit 1, check bit NONE Data storage: 99 groups, flashing "FULL" symbol indicates the storage is full Data retention: Data retention function: "DH" symbol displays overflow display : Over-range overflow function: "OLA" symbol displays Automatic shutdown: The instrument automatically shuts down 5 minutes after it is turned on to reduce battery consumption Battery voltage: When the battery voltage drops to 7.2V, a low battery voltage symbol will be displayed to remind you to replace the battery Instrument weight : 220g (including battery) Operating current: Maximum 20mA Operating temperature and humidity: - 10 & 8451; & 65374; 50 & 8451; and 40 & 8451; & 65374; 50 & 8451;, the maximum error increases by 2% rdg Storage temperature and humidity: - 10 & 8451; Between the core and the box) Applicable safety regulations: IEC1010-1, IEC1010-2-032, pollution level 2, CAT III (600V)