Neptune Systems PM1 pH/ORP Temp Probe Module

The PM1 probe module is just what you need if you want to monitor pH or ORP in your tank. And, there is an added bonus, you get an extra temperature port as well as six I/O switch inputs for use on ATO, feed buttons, or whatever else you may come up with.  This module is perfect for someone that wants to add an additional pH or ORP port to their Apex System.

pH/ORP Probe Expansion Module for the Neptune Systems Apex

• Compatible with all Apex Systems
• Dual Functionality: Choose Between pH and ORP Monitoring
• I/O Port for Breakout Box Connection
• 2 AquaBus Ports

pH/ORP Probe Port

The PM1 can be used with either a pH or ORP probe, depending on what you’re looking to monitor. For example, if you’re running two aquariums near each other, you can connect a pH probe to the PM1 and run both tanks off the same Apex system. Or maybe you have a calcium reactor and need to monitor the pH inside to automate a CO2 solenoid. Alternatively, you could connect an ORP probe and automate specialized equipment like an ozone generator.

Temperature Probe Port

This module also features a temperature probe port. An additional temperature probe allows you to monitor the temperature of another aquarium or even the temperature of the ambient air around your aquarium, depending on where you place the temperature probe.

I/O Port

The PM1 Module features an I/O port, which is how you can connect your Apex to the Breakout Box, one of the most underrated and underutilized Apex accessories. The Breakout Box allows you to connect up to 6 different switches or buttons to trigger feed modes, timers, and more.