DL400E - Digital recorder with 8 event inputs

The DL400E is suitable for applications involving signals with only two states (on/off states, open/closed contacts, 0/1 logical states) and only records input state changes.  When a change is detected; date, time and state are stored into memory.  If no change occurs, no data is stored.  From the list of recorded events, it is possible to determine duration between changes, frequency of events and time % ON-state over selectable periods.