... receiver, can read long-distance data, Wireless transmission up to 30m. . Technical Specifications FunctionHigh voltage AC current measurement, low voltage AC current, current ... Memory99 sets, memory process is shown by MEM , full storage is shown by blinking “ FULL ”PEAK value maintainingAutomatically ... testing mode, press HOLD key to keep data, shown by “ HOLD ”Data Access “ MR ” indication, can ...