Precision Timer 1*60 0-60sec / min Delay On / Off Timer - 

A simple, low cost, versatile timer suitable for security systems and many other applications where a reliable modular timer is required. In all cases, the timer will start when an input signal is applied. This signal may have a positive +5V-±15V or a negative (0V) voltage. The input may be a pulse or a continuous signal. Two modes of operation are possible: MODE A - the relay is ON AFTER the time period where the relay can be latched On or activates momentarily and latches if there is an iput signal; MODE B - the relay is ON FOR the time period and then switch off even if there is an input signal present and reset once the signal is removed.