The HTV-1 Voltmeter DIY Kit is a versatile and easy-to-assemble solution for voltage measurement projects. It supports both two-wire and three-wire configurations, providing flexibility for various use cases. Whether you're working on electronics testing or DIY projects, this kit offers reliable performance with a compact design. Parameters Kit Name: Voltmeter Kit Kit Model: HTV-1 Operating Voltage: DC 4.2~30V Measurement Range: DC 0~30V Measurement Accuracy: 0~9.99V: 0.01V 10~30V: 0.1V The HTV-1 voltmeter kit allows switching between two-wire and three-wire configurations through solder pad short/open settings. Two-wire mode: The HTV-1 is powered by the measured voltage, with a measurement range of 4.2~30V. Three-wire mode: The HTV-1 is powered by a separate voltage source (4.2~30V), and the measurement range extends to 0~30V.