Neptune Systems Apex A3 PRO Controller System


Neptune Systems A3 PRO Apex System — The control you want, monitoring you need, and with room to grow for the everyday hobbyist

  • Track temperature, ORP, and pH with included lab-grade, double-junction probes
  • Continuous monitoring of water-level depth with new Liquid Level Sensor
  • Reliable and reusable new Optical Multi-Surface Leak Detection Sensor
  • Set reminders, log testing and dosing information, and access your tank from anywhere with Apex Fusion