Aquarium Tank Temperature

Neptune Systems PM1 pH/ORP Probe Module Six Port Aquarium Fish Tank Temperature

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  • Test/Treatment Parameter:
    pH Level
  • Brand:
    Neptune Systems
  • MPN:
  • Q Number:
  • ASIN:
  • Voltage Item:
    110 -120 USA Standard Plug
  • UPC:
    Does not apply

Neptune Systems PM1 pH/ORP Probe Module Six Port Aquarium Fish Tank Temperature

Neptune Systems PM1 pH/ORP Probe Module Six Port Aquarium Fish Tank Temperature


The Neptune Systems PM1 Module is a great addition to your professional Apex system. Using this module, you will be able to add an additional pH or ORP port to your system, with the added bonus of an extra temperature port as well as 6 (six) I/O switch inputs.

pH usage:

When using this module with your existing Apex System controller, you could control another tank’s pH levels, or for control of the co2 solenoid on your calcium reactor. Another option is to control another tank by plugging this module into your existing Apex System, and then utilize the necessary pH and temperature probes (sold separately).

ORP usage:

When using this module with your existing Apex System controller, you could use that ORP value to turn your ozone generator off and on. Enabling the full functionality of the Apex System, you are able to set up audible or email alerts if your values fall out of your specified range.

Extra temperature port:

You may find it extremely useful to have an additional temperature port. By placing a temperature probe in your sump tank and one in your display tank, you will create a redundancy within your system, allowing for reading and control in case of return pump failure.

Six I/O switch ports:

By purchasing the optional I/O Breakout Box (sold separately), you will be able to monitor the on/off state of six I/O signals. This allows for set-up and activation of Automatic Top-Off (ATO) systems, feed buttons, sump door alarms, or light switches.

Galvanic Isolation:

Galvanic Isolation is key to getting accurate readings on pH, temperature, ORP, and conductivity. Most other controllers do not have a strong handle on this, if they do it at all. When two or more electric circuits need to communicate, their grounds may be at different potentials. By employing Galvanic Isolation, we are able to get a more accurate reading by effectively breaking any ground loops caused by this. Doing so prevents any unwanted currents from flowing between two units sharing the same ground conductor. Systems that do not employ the use of this process gain inaccurate readings of pH, temperature, ORP (ReDox), salinity, and more.


Monitor/ control pH or ORP, and temperature

6 (six) digital inputs for float switches, water on floor sensors, pressure sensors, etc.

Full datalogging support in Apex Base module

Up to 240 AquaBus modules can be added to the Apex system

Plug and Play capability, automatically recognized when installed

Two AquaBus connectors for flexible expansion via AquaBus

LED status indicator

Upgradeable firmware

Compatible with all Apex systems

Galvanic Isolation for accurate and reliable probe readings

Comes with 3’ AquaBus cable

Note: The newer version is GRAY. You could receive either a black or gray model depending on available stock.

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