S: sensorProbeX+ module with 4 sensor ports 

A sensor4 module can be added to a sensorProbeX+ (SPX+) environment monitoring appliance for the purpose of adding 4 more intelligent sensor ports, allowing you to build your sensorProbeX+ (SPX+) to your requirements.

Connect a wide range of intelligent sensors and smartRack sensors such as Cabinet Thermal Maps, Programmable LCD Display and RFID Swing Handle Locks.