The Marshall Remote Change-over Indicator offers the convenience of monitoring the uninterrupted gas supply form a 254 regulator to LP gas appliances.  The sensor clip easily snaps onto the indicator window of the Marshall 254 automatic change-over two-stage regulator.  The sensor recognizes when the 254 regulator is drawing from the reserve cylinder and signals the light box which has been installed in a remote location away from the propane cylinders.  The blinking yellow light indicated that the service cylinder is empty and needs to be filled.

SPECIFICATIONS

• 20 feet of 24 gauge wire
• Light box dimensions-3.3"L x 2.4"W x 1"D
• Uses 2 AA batteries
• 2 self tapping screws
• 2 wire nuts