Monnit Commercial Wireless Resistance Sensor - MNS-9-W2-RS-RD

Monnit Commercial Wireless Resistance Sensor - MNS-9-W2-RS-RD

The Monnit Wireless Resistance Sensor measures the resistance across a load. It can be connected to any kind of passive (no voltage) resistance load.

Key Features

• Measures up to 250k Ohms - Accuracy: ± 2% FS with user calibration
• Interfaces with any purely resistive and passive load
• Configurable thresholds for critical condition monitoring

Principles of Operation The Wireless Resistance Sensor reads the resistance across any resistive load on a user-configurable time interval or Heartbeat. The resistance sensor leads are meant to connect to passive devices only. Connecting the sensor leads to any voltage or power source may damage the sensor. On every Heartbeat, the sensor measures the resistance across its leads. This measurement is then sent to the gateway, making the data available in iMonnit or another approved data service.

Example Applications 

• Resistance Monitoring
• Battery Monitoring
• Transducer Interfacing

Features of Monnit Sensors:

• Wireless range of 2,000+ feet through 18+ walls
• Frequency-Hopping Spread Spectrum (FHSS)
• Best-in-class interference immunity - Best-in-class power management for longer battery life
• Encrypt-RF ® Security (Diffie-Hellman Key Exchange + Advanced Encryption Standard (AES)-128 Cipher Block Chaining (CBC) for sensor data messages)
• Sensor logs 2000 to 4000 readings if the gateway connection is lost (non-volatile flash, persists through power cycling):
  • 10-minute Heartbeats = ~ 22 days
  • 2-hour Heartbeats = ~ 266 days

Automatic over-the-air updates to sensor firmware (future-proof)