Line of leak-detection systems includes an alarm box, continuous cable system and a low point leak-detection system. For simple leak-detection requirements, Model 918Q Alarm Box handles up to four sensor signals and has audible and visual alarm indicators. The space-saving device emits a 90 dB alarm. The microprocessor-based PAL-AT offers multi-sensing and remote monitoring of up to four separate sensing zones, each with up to 7,500’ of sensor cable. The system is capable of locating multiple leaks as well as growing leaks. The low point leak-detection system uses 12 discrete inputs to allow a leak to be identified at a specific location point in the pipe. Other important characteristics include complete output functionality, availability of additional points, power protection and locking latches.