DU4 series - digital ammeter [upper and lower limit alarm/RS485 communication/4~20mA]

1. Single phase true effective value measurement, 4-digit display, full range accuracy of 0.3%. 2. Fast sampling, sampling speed adjustable from 2 to 20 times/second. 3. Upper and lower limit alarm function (optional function), adjustable alarm value. 4. 4-20mA output (optional function), free to change 0~10V5, 485 communication (optional function), Modbus RTU communication protocol. 6. Instrument working voltage AC90~260V, adjustable DC24V7, four panel sizes to choose from, one rectangular and three square