Neptune A3 Apex SystemThe A3 Apex is an aquarium monitoring and control system built to help prevent equipment failures, catch problems early, and make day-to-day reefing less stressful. Track key parameters, control connected devices, and get notified when something needs attention.Aquarium TypeSaltwater, FreshwaterDimensions4.75″ L x 3.25″ W x 5.25″ W base unit; 10″ L x 2.25″ W x 6.5″ H energy barWhat it MeasurespH, Multi-Parameter, Leak Detection, Power Usage, Temperature, Water LevelStandaloneYesCompatibilityApexDevice TypeMonitor + ControlConnectivityWiFi, App-Controlled, Ethernet, WiredResults DisplayDigitalProbe IncludedLeak Detector, pH, Temperature, Water LevelProbe TypeDual JunctionSensor Connection2-Wire, BNC, Push ConnectConnection TypeAquaBus, 1LINK, ethernet, 6 switch, FMM push connect, DC24VPower TypeDC