DC 4-100V Car Voltage Current Meter LED Digital Display Volt Detector Tester Round Multimeter Panel Two-wire Features: 1. High Quality: Car voltage current meter adopts the latest imported chip header, CE and RoHS certification to ensure more stable and safe product quality. 2. Convenient Connection: Volt detector tester is equipped with 2 wires, which is convenient to connect the order without additional power supply, and directly uses the measured voltage as the power supply. 3. High Performance: Multimeter panel is high precision, low starting working voltage, minimum 3.8V, with reverse connection protection, reverse connection without burning, and fine adjustment function. 4. Work Range: Voltmeter measuring range DC 4V-100V/AC50V-500V,power supply range: DC 4V-100V/AC 50V-500V. 5. Satisfaction Guarantee: We strive to provide each customer with the highest standard of customer service to ensure you have a pleasant shopping experience. If you have any issues, inquiries or need assistance, please feel free to contact us directly. Specification: Certification: NONE Origin: Mainland China DIY Supplies: ELECTRICAL Display Type: Digital Only Operating Temperature: -10-65 Model Number: Voltage Meters Material: plastic+electronic components Type: digital voltage measuring instrument Measuring range: DC 4V-100V/AC50V-500V Power supply range: DC 4V-100V/AC 50V-500V Minimum start: 3.8V Allowable error: 1% Input impedance:>100K ohms Working current: red<15mA, green<12mA, blue<12mA Refresh rate: about 300mS/time Display mode: three-digit circular LED nixie tube Display color(optional): red/green/blue Leading length: 20cm Size: diameter 33.8 Hole size: diameter 30.0 Net weight: 4g Working temperature: - 10 ~65