Sounds an alarm when the power is out, the pump has accidentally been unplugged, or the circuit breaker has been tripped. A light blinks continuously indicating that the controller is plugged in and operating. Indicates when it is time to replace the 9-volt battery or reminds you to move the slide switch back into the ON position. Sounds an alarm when the float has been raised for 10 minutes continuously. A remote terminal provides connection to a home security system or remote dialer.