The Power Watch voltage disturbance/power quality analyzer records voltage disturbances which is useful for monitoring medical equipment and other sensitive electronic equipment. Voltage disturbance events recorded include surges, sags, outages, dropouts, impulses, and frequency variation. It is plugged into a 110V receptacle and stores up to 4,000 events in its 32 kB memory. Requires ACR Optical Interface Cable and EventReader software to launch and download events. Need to have it plugged in when downloading data to conserve battery.
View specifications: here
Download user's manual: here
Download EventReader software: here