Neptune PM2 Salinity Module

The PM2 salinity module, includes support for conductivity (salinity), temperature, and 6 digital inputs. The PM2 features are:
 

Monitor/Control Conductivity and temperature.
6 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. 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 Apex and Apex Lite systems.