Neptune Systems PM1, pH or ORP, Temperature, I/O Expansion Box

Neptune Systems PM1, pH or ORP, Temperature, I/O Expansion Box.

The first expansion module, the PM1 (shown above) , with a pH or ORP, temperature, and 6 digital inputs.

The PM1 features are:

* Monitor/Control pH or ORP, 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
* Led Status Indicator
* Upgradeable firmware.
* Compatible with Apex and Apex Lite systems.
* Galvanic Isolation for accurate and reliable probe readings.
* Comes with 3' AquaBus cable.