... Meter, Ampere Meter1) 8-bit micro processor, 5 digit LED display, range up to 19999, sampling rate ... current is according.7) Some models have RS485 communication function, users can read different value on PC, ... value, alarm hysteresis, transform rate, decimal point setting, communication address, baud rate, etc.8) Dimension: 48Hx96Wx100L mm. ... 3A DC 30V/3A DP4 5 digit Voltage Meter / Ampere Meter