top of page
Neptune Systems Salinity Module PM2

Neptune Systems Salinity Module PM2

SKU: T991
C$133.99 Regular Price
C$117.91Sale Price

The Neptune Systems Salinity Module PM2 ensures real-time monitoring of salinity levels in your aquarium, crucial for the health of aquatic life. With this module, your Apex system continuously tracks salinity and alerts you to any deviations from the safe range. Additionally, it includes an extra temperature port and six I/O switch inputs for added functionality, such as automated top-off systems or feed buttons. The module's conductivity probe coupled with the temperature port enables accurate salinity measurements, accounting for temperature variations. Boasting features like full datalogging support, galvanic isolation for precise readings, and compatibility with all Apex systems, the PM2 offers comprehensive monitoring and control capabilities for your aquarium.

Neptune Systems Salinity Module PM2




Maintaining consistent salinity in your aquarium is key to the well being of every organism inside it. And, as busy as we sometimes are, we don’t even realize our parameters are out of whack until it’s too late. With this module, your Apex will be constantly monitoring the Salinity in your tank and will let you know the minute it is trending outside of the safety zone.


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.


Salinity varies with water temperature. This extra temperature port is extra important because, when used, it is coupled with the conductivity probe’s value to calculate the most accurate real-time salinity measurement possible.



  • Monitor/Control Conductivity/Salinity and temperature

  • 4 Measurement ranges (0-900 uS/cm, 0-9.0 mS/cm, 0-90.0 mS/cm, 0-50 ppt)

  • 6 digital inputs for dry contact switches- float switches, push buttons, 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. Automatically recognized when installed into the system

  • Two AquaBus connectors for flexible expansion via AquaBus

  • Comes with 3′ AquaBus cable

  • Galvanic Isolation for accurate and reliable probe readings

  • Led Status Indicator

  • Upgradeable firmware

  • Compatible with all Apex systems


More Information

bottom of page