Sku: R718F-M-AS923

Availability: Many In Stock
Sku: R718F-M-AS923

Netvox Wireless Robust Metal Reed Switch Open/Close Detection Sensor - R718F-M is equipped with a Robust Metal type reed sensor, which can be used to detect the status of the door and window. Through the built-in wireless module, it can achieve wireless alarm and other functions. It uses the SX1276 wireless communication module.

Principle of Operation

The reed switch is on (conducting) within the magnetic range, and is off (nonconducting) when it's out of the magnetic range. The module can detect the closing and opening signals so that the state of the door window status can be detected.


Example Applications

  • Farm gate,
  • Doors and windows
  • Production line tracking
  • Objects to be detected open / close status


    Features of NETVOX Sensors

    • Wireless range of 10 km *
    • LoRaWANTM 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* :
    5 years (Conditions: ambient temperature 25 °C, 20 triggers/day, txpower = 20dBm, LoRa spreading factor SF = 10)
    • Over-the-air updates (future)
    • 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
    • R718X series carry magnets which can be attached to ferromagnetic materials and objects
    *Actual range may vary depending on environment.
    *Battery life is determined by sensor reporting frequency and other variables


    Technical Specifications


    Input Power 2 x 3.6V ER14505 AA lithium batteries
    Sleeping Mode 20uA
    Wake up Mode 6.3mA @ 3.3V
    Low Voltage Threshold 3.2V
    Tx Current 120mA/3.0V
    Rx Current 11mA @3.0V
    Battery Life  

    5 years

    (Conditions: ambient temperature 25 °C, 15 min heartbeats, txpower = 20dBm, LoRa spreading factor SF

    = 10)



    Tx Power 19dBm±1dBm
    Rx Sensitivity -136dBm (LoRa,Spreading Factor=12,Bit Rate=293bps ) -121dBm (FSK,Frequency deviation=5kHz, Bit Rate=1.2kbps)
    Antenna Type Build-in antenna
    Communication Range Build-in antenna
    Data Transfer Rate 0.3kbps~50kbps
    Spread Technique   LoRa/FSK
    Available Frequency   EU863-870,US902-928,AU915-928, KR920-923,AS923,CN470-510 Configured before shipment







    Operating Temperature

    -20℃ ~ 55℃

    Environment Humidity Range

    <90% RH (No condensation)

    Storage Temperature

    -40℃ ~ 85℃

    Sensor Case Size


    Sensor Characteristic

    Inside the magnetic rang, it is at on state (conducting). When out of the magnetic range, it is at off state (non-conducting). Sensing distance inside magnetic rang is 2cm.

    Reed switch

    Robust metal type Reed switch with sensing distance in maximum 5cm. 


    105mm x 50mm x 10mm ( sensor pad)

    105mm x15mm x 15mm (magnet part)

    External Cable Length

    28 cm




    User manual:


    Battery Calculator: 

    Netvox Battery Calculator 

    Netvox LoRa Command Resolver: 

    LoRa Command Resolver

    R718F-M - Netvox LoRaWan Wireless Metal Reed Switch Open/Close Detection Sensor

    Sku: R718F-M-AS923

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