Features： 1、PACKAGE: 1 mini digital blue LED voltage tester, automatic movement, bright and clear, convenient for you to view the measurement results. 2、NO NEED FOR EXTERNAL POWER SUPPLY: No external power supply is required, and the measured voltage can be used directly as the power supply. 3、CONVENIENT WIRING: 2 wire design, convenient wiring, with reverse connection protection. The measurement range is AC 70V‑500V. 4、WIRING: The red wire is connected to the positive pole, and the black wire is connected to the negative pole. 5、FEATURES: Good stability, high measurement accuracy, convenient reading, easy to install and use Specification： Item Type: AC Voltage and Current Digital Display Meter Material: ABS Model: AT-5035-A/V Voltage Measurement Range: 50-500V Current Measurement Range: 1-80A Display: LED Digital Tube Working Environment: -20℃~40℃, Humidity ≤80% Purpose: Measure Voltage and Current Package List： 1 x Header 1 x Wiring 1 x Wire with Magnet