CONTACTlogger - Time-of-Use Datalogger - Brochure

The CONTACTlogger time-of-use data loggers, part of the SMARTlogger Series, are designed to monitor the on/off status and total time-of-use of switches and relays on un-energized, "dry contact" devices. It is equipped with a 3-foot (90 cm) pair of wires that are connected to the switch or relay. When they make contact, an "on" transition is recorded.