R311CA LoRaWAN Wireless Dry Contact Sensor Node
Review: 5 - "A masterpiece of literature" by , written on May 4, 20020

R311CA LoRaWAN Wireless Dry Contact Sensor Node

Available:Accepting Orders

R311CA LoRaWAN Wireless Dry Contact Sensor Node

The R311CA device has a built-in reed switch sensor, and can be connected to a certain number of reed switches through external expansion. It can be used for door and window switch status detection. It can realize wireless alarm and other functions through built-in wireless module, and is compatible with LoRaWAN Protocol. It can be easily networked with other related devices. The R311CA is durable and ensures optimum use and is a low power consumption device. Due to their small size, they can be installed anywhere, they are wireless, so they take up very little space.


  • Wireless Range Of 10 Km
  • LoRaWAN™ Class A Compatible
  • Frequency Hopping Spread Spectrum (FHSS)
  • Improved Interference Immunity
  • Improved Power Management For Longer Battery Life
  • Encrypt-RF™ Security (Diffie-Hellman Key Exchange + AES-128 CBC For Sensor Data Messages)
  • Battery Life*2:
    ⁻ 5 Years

     (Conditions: Ambient Temperature 25 °C, 20 Triggers/Day, Txpower = 20dBm, LoRa Spreading Factor SF = 10)

  • Over-The-Air Updates

  • Third-Party Online Wireless Sensor Monitoring And Notification System To Configure Sensors, View Data And Set Alerts Via SMS Text And Email (Optional)

  • Available Third-Party Platform: Actility/ThingPark, TTN, MyDevices/Cayenne



Input Power

2pcs 3.0V CR2450 Button Battery

Working Voltage

DC 2.4V~3.0V

Standby Current

10uA /3.0V

Transmitting Current (Max)

120mA / 3.0V                     

Receiving Current (Max)

11mA / 3.0V            

Battery Voltage Measurement Accuracy



TX Power


Rx Sensitivity

(LoRa,Spreading Factor=12,Bit Rate=293bps )
(FSK,Frequency Deviation=5kHz, Bit Rate=1.2kbps)

Antenna Type

Build-In Antenna

Communication Range

10 Km (Line-Of-Sight, The Actual Transmission Distance Depends On The Environment)

Data Transfer Rate


Spread Technique


Available Frequency



Main Body Dimension

57mm X 35mm X 14mm


48.9 G

Operating Temperature

-20℃ ~ 55℃

Environment Humidity Range

<90% RH  (No Condensation)

Storage Temperature

-40℃ ~ 85℃




User manual