Liebert SN-2D Sensor

The Liebert SN-2D modular sensor is a two-door switch monitor sensor with a two connection points, which allows for a custom string design. Liebert SN sensors are designed to assist in monitoring conditions within a rack and can be placed in any area to read door status.


  • Modular two-door switch, with 1 probe
  • Custom string design
  • Compatible with the Liebert MPX and Liebert MPH rack PDUs, Liebert RDU-S monitoring devices and Liebert IS-UNITY DP Communications Card  


  • Helps to protect physical security of critical equipment
  • Highly flexible configurations
  • Fast installation and operation