4pcs 0.28 LED Digital Voltmeter Gauge 0-100V Three-Line Tester Display Panel

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Specifications: Measuring Range: Three-wire DC 0~100V Working Voltage: 4~40V (with reverse connection protection); voltages higher than 40V may cause damage Test Accuracy: ±1% for >10V; error within ±0.2V Features: Two Connection Methods: 3 wires connected separately for measuring voltage and power (yellow and red are positive; black is negative) 3 wires used as 2 wires for voltage measurement (yellow can be paired as positive; black is negative) Mini Voltmeters: Includes 4 units with 4 color options; features a 0.28-inch LED display; designed to be compact and lightweight Advanced Features: Reverse polarity protection prevents damage from reverse connection; high precision; low startup working voltage; equipped with fine adjustment function Quality Assurance: Constructed from high-quality materials, featuring exquisite workmanship for excellent durability and a long service life Package Includes: 4x 0.28-inch Digital Mini Voltmeters Show more