Monitors the speed of rotating machinery using any 3-wire NPN sensor or other volt-free contact and will switch the output at the pre-selected speed Response time of ;0.4 seconds at 150rpm to match Series 2 temperature controllers and timers On-board 15Vdc supply to drive a proximity sensor 1mA FSD moving coil meter output LED indication of output status 45mm x 45mm panel cut-out SPCO output
