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Neptune Systems AquaController Apex PM2 Salinity Module

Neptune Systems AquaController Apex PM2 Salinity Module
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* Salinity probe module for all AquaController Apex controller systems
* Expansion module provides conductivity & temperature probe ports
* Monitor aquarium salinity in real-time from your computer or mobile device

Monitor aquarium salinity in real-time with this simple upgrade to your AquaController Apex Controller System. Neptune Systems AquaController Apex PM2 Salinity Module expands the monitoring and control capabilities of your Apex system by adding conductivity and temperature probe ports. Six additional I/O switch inputs are great for ATO, feed buttons, float switches, water sensors, flow sensors and more!

Neptune Systems AquaController Apex PM2 Salinity Module is an invaluable expansion option for reef-keepers or any hobbyists with a saltwater aquarium. Provides 4 measurement ranges (0-900 µS/cm, 0-9.0 mS/cm, 0-90.0 mS/cm, 0-50 ppt) to suit hobbyist preference.

Connect a Neptune Systems AquaController Apex Temperature Probe (sold separately) to the additional temperature port on the PM2 Salinity Module and set the temperature compensation to experience the most accurate real-time salinity measurement possible!


  • Monitor/Control Conductivity/Salinity and temperature.
  • 4 Measurement ranges (0-900 µS/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 data logging 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 Apex system.
  • Two AquaBus connectors for flexible expansion via AquaBus.
  • Comes with 3 ft AquaBus cable.
  • Galvanic Isolation for accurate and reliable probe readings.
  • LED Status Indicator.
  • Upgradeable firmware.
  • Compatible with all Apex systems.

Shop all Aquarium Controllers and Monitors.

Please click "More Information" for setup guide.

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