Neptune Systems A3 Apex Jr System — Get the essential monitoring you need now, expand into control later
A3 Apex Jr base unit
2 FMM Ports
2 Aquabus Ports
1 pH/ORP* probe port
1 Temperature probe port
WiFi compatible only�(no Ethernet port)
New built-in audible alarm
Expandable
Track temperature and pH with included lab-grade, double-junction probes
Monitor water level with new MOS Magnetic Optical Sensor
Stay on top of leaks with LD-2 Leak Detection Floor Sensor
Set reminders, log testing and dosing information, and access your tank from anywhere
Affordable entry into Apex ecosystem with ability to add-on/expand as you see fit