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Sensaphone IMS-4821 Humidity Sensor with LCD Readout


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Conveniently Monitor Indoor Humidity

When connected to your Sensaphone IMS system, the Sensaphone IMS-4821 Humidity Sensor with LCD Readout detects and displays the current indoor humidity level, allowing you to conveniently monitor the area. Simply connect the sensor to your Sensaphone via RJ-45 patch cable (sold separately). The sensor can be placed next to the system, mounted on a wall, or installed in a single-gang electrical box.

  • Detects and displays indoor humidity
  • Can be located away from the Sensaphone unit
  • Fits in a standard single-gang box

If necessary, you can use your existing network wiring infrastructure to install the sensor in a room away from the Sensaphone. Connect the sensor to your structured wiring network via an RJ-45 jack. At the other end, connect a patch cable from your structured wiring patch panel directly to the Host or Node environmental input.

IMPORTANT NOTE: This Sensaphone product is not available to ship outside the U.S.

Sensaphone Remote Monitoring Solutions

Unexpected events happen. But Sensaphone remote monitoring systems are on alert full time to notify you of threatening conditions, so you can respond quickly and prevent costly damages and disruptive downtime. From wireless capabilities to ultra-low temperature tolerant systems, you'll find the right Sensaphone for your monitoring needs. Start protecting your investments today.


  • Manufacturer Part #: IMS-4821
  • Temperature Range: 32°F to 158°F (0°C to 70°C)
  • Humidity: 5 to 95 percent RH
  • Accuracy: ± 3°F
  • Connector: RJ-45
  • Housing: White plastic
  • Dimensions: 4-3/4 x 2-7/8 x 1-3/16 inches
  • Compatibility: Sensaphone IMS-4000, IMS-4000 Node, and IMS-1000