Neptune - Apex A3 Jr Controller System

Upgrade to electronic monitoring of your tank's critical parameters with the A3 Apex Jr. System! System features include:

- Monitors tank pH and temperature with laboratory-grade probes
- Keeps track of water level with Magnetic Optical Sensor (MOS)
- Features a leak-detection floor sensor for staying on top of critical issues
- 2 Additional AquaBus ports allow you to expand your Apex Jr. for more monitoring options
- Built-in audible alarm lets you know when things aren't right
- Monitor and alert remotely with the Apex Fusion phone app.

Includes: A3 Apex Jr. Base Unit
Lab Grade Double Junction pH Probe
Temperature Probe
Solid-Surface Leak Detection Probe
Magnetic Optical Sensor
Power Supply
pH calibration solutions