Neptune Systems pH/ORP Temp Probe Module

Having an extra temperature port and probe is always useful. Some people like to put one sensor in the screen tank and one in the sump just for redundancy. That way, if the return pump went out, you would watch the monitor tank and see the temperature drop and know something was wrong. With the PM1 you can easily use your existing Apex to monitor additional tanks simply by adding this module.
Characteristics
Monitor/Control pH or ORP and temperature
6 digital inputs for float switches, floor water sensors, pressure sensors, etc.
Full data logging support in the Apex Base module
Up to 240 AquaBus units can be added to the Apex system
CONNECT and PLAY. It is automatically recognized when installed on the system
Two AquaBus sockets for flexible expansion via AquaBus
LED status indicator
Upgradable firmware
Compatible with all Apex systems
Galvanic isolation for accurate and reliable detector readings
Comes with an AquaBus 3 cable;