The PM3 probe module, includes support for dissolved oxygen, temperature, and 6 digital inputs. The PM3 features are:

Monitor/Control Dissolved 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.