AC Ammeter Gauge, DROK LCD Digital Display Ampere Meter AC 0-19.99A Current Reader Amp Tester Blue Display Amperage Panel with Precise Transformer The ac ammeter gauge is able to measure the Current Range of AC 0.1-19.99A The current measuring meter measuring accuracy is 0.5% (2 Digits). Our ampere tester Working Voltage is AC 80-500V Blue LCD Digital Display with black letters. Characterized by high testing accuracy and high stablity.