Features Large LCD Screen Display: Enjoy clear and accurate readings with a maximum display value of 1999, making it easy to monitor measurements at a glance Enhanced Safety Features: Benefit from the automatic recovery overload protection circuit, ensuring safe operation during all testing scenarios Durable Test Leads: Experience improved handling with compact soft rubber protective covers that provide insulation and a non-slip grip for reliable usage Versatile Testing Capabilities: Measure AC/DC voltage, DC current, resistance, and transistors, making it ideal for resolving automotive and household appliance issues Ideal for Various Users: Perfect for laboratories, factories, radio enthusiasts, and home use, this tool meets diverse testing needs with superior performance Features: 1、100% and high-quality. 2、Split-type: easy to install, the transformer is separated from the instrument, and the transformer can be installed according to the actual position of the measurement. (It can lengthen the lead at the second end of the transformer to reach the ideal ins 3、Two-wire system: No need to connect the power supply, red and black lines to measure the voltage at the same time to the meter head power supply (no need to split polarity). 4、Current testing requires no additional purchase of transformer. The instrument is equipped with a high precision transformer. 5、In the watch head, l-set fine-tuning potentiometer can calibrate the voltage and current error by itself. Specification: Features: 100% and high-quality. Split-type: easy to install, the transformer is separated from the instrument, and the transformer can be installed according to the actual position of the measurement. (It can lengthen the lead at the second end of the transformer to reach the ideal installation position). Two-wire system: No need to connect the power supply, red and black lines to measure the voltage at the same time to the meter head power supply (no need to split polarity). Current testing requires no additional purchase of transformer. The instrument is equipped with a high precision transformer. In the watch head, l-set fine-tuning potentiometer can calibrate the voltage and current error by itself. Specification: The range of voltage measurementNo direct exposure Package List: 1 * Current voltmeter head 1 * mutual inductance coil 1 * adapter Note: The wiring sequence of the instrument is: the circuit of the current loop is connected first, the 220V voltage is finally connected, after connecting the 220V power supply, it can not touch any parts and circuits behind the in Package List