The Alarmlog is a single channel, battery powered logger with audible alarm and a large clear display. The Alarmlog takes a measurement every 4 seconds even if your logging interval is 1 hour. It stores the worst case value measured during each logging interval. The time and date of each alarm event or settings change is recorded in a separate event log. An additional contact input may be used, for example, to generate an alarm if a freezer door is left open. Alarmlog is connect together to create small multipoint systems and can also be used in systems. A full range of installation accessories make the system simple to install and easy to expand. The Alarmlog is completely self-contained and doesn’t rely on a PC for its operation. Free Windows PC software displays, analyses, prints and archives your logged data.