System Sensor EPS10 Series switches are designed for use in wet, dry, deluge, and preaction automatic sprinkler systems to indicate a discharge from a sprinkler. The EPS10-1 has a single SPDT switch while the EPS10-2 model contains two SPDT switches.

The EPS10 Series features field adjustable pressure sensitivity to provide an alarm response between 4 and 20 psi. It is factory set to respond at 4 – 8 psi on rising pressure. The pressure adjustment wheel requires no special tools and does not affect switch synchronization on the EPS10-2.