LED digital voltmeter‑ammeter (model Voltmeter Ammeter) with a 0.28" LED readout and high accuracy class. Power supply is DC. Overall dimensions are approximately 3.54 in × 1.97 in × 0.98 in (90 mm × 50 mm × 25 mm). Operating temperature range is about 14°F to 149°F (-10 °C to 65 °C). Certified to CE standards and sold by diymore.