Dual USB LED Digital Charger Test Meter for Voltage Current Battery Monitoring

Dual USB digital charger tester and voltmeter by Gaqqee, model USB Battery Tester Voltmeter. High accuracy class, compact dimensions 52 mm×22 mm×14 mm (about 2.05 in×0.87 in×0.55 in). Operating temperature range -10 °C to 65 °C (14 °F to 149 °F). DC powered, digital-only display; made for electrical DIY checks.