Dual relay board for high power isolated output of Switch8 or Switch-It.
Connects to a Switch8 or Switch-It decoders tp porvide two SPDT or one DPDT relay output for switching up to 2 amps of power. 
Uses:
Control polarity of "dead frog" turnouts.
Automatic Reverse loop control.
Turn track power on/off in staging yards.
Provide isolated turnout position information to signaling or computer control systems.
 
MSRP $25.95  Photo by NCE