1pc 0.28" Digital Voltmeter Ammeter Voltage Tester DC 100V 10A Dual LED Display Panel Blue Red 0.28" 3 Bit

Digital Voltmeter Ammeter 0.28" DC 100V 10A Dual LED Display Blue Red 10A Voltage and Current Tester with 3-Bit Blue and Red Dual LED Display UNIQUE CALIBRATION --- Unlike other budget voltmeters on the market, ours have a voltage and current calibration potentiometer. This brings better accuracy and convenience to your DIY work. Operating voltage: DC 4 ~ 30 V; Measuring voltage: DC 0 ~ 100 V; Minimum Resolution(V): 0.1 V Operating Current: <20mA; Minimum Resolution (A): 0.01A; Measuring Current: 10A