PowerWatch Model 001 120V Voltage Disturbance Recorder POWERWATCH is the easiest way to monitor and record essential voltage disturbance information from any 120 volt North American power receptacle. Just setup your pre-determined disturbance threshold values or use the industry standard default values and plug it in. No wiring or dangerous connections required. Voltage Disturbance Recorder -------------------------------------------------------------------------------- PowerWatch Model 002 220/240V, 50/60 Hz Voltage Disturbance Recorder POWERWATCH is the easiest way to monitor and record essential voltage disturbance information from any 220/240 volt Australian, European, or U.K. power receptacle. Just setup your pre-determined disturbance threshold values or use the industry standard default values and plug it in. No wiring or dangerous connections required. Voltage Disturbance Recorder --------------------------------------------------------------------------------