Storing P+, P-, Q+, Q- for up to 62 days. Storing min/max instantaneous values for 3U, In, 3V, F, ±ƩP, ƩQ, ƩS, THD3U, THD3V, THD3I, THDIn. Storing last 10 time-stamped alarms, voltage dips, surges and outages.