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R311CA-Wireless Dry Contact Sensor

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Netvox wireless dry contact sensors can be used to detect contact between two wired contact points. 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.

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Netvox wireless dry contact sensors can be used to detect contact between two wired contact points. 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.

• LoRaWANTM Class A compatible
• Frequency Hopping Spread Spectrum (FHSS)
• Improved interference immunity
• Improved power management for longer battery life
• Battery Life*2:
⁻ Please refer to web: http://www.netvox.com.tw/electric/electric_calc.html
⁻ At this website, users can find battery life time for varier models at different configurations.
• 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
•*1. Actual range may vary depending on environment.
•*2. Battery life is determined by sensor reporting frequency and other variables

Electric:

  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

  ±0.1V

  Wire Material

  UL2468 28AWG

  Wire Length

  1000mm(±5mm)


Frequency:

Frequency Range

863MHz-928MHz 470MHz-510MHz

TX Power

US915 20dbm;
AS923 16dbm;
AU915 20dbm;
CN470 19.15dbm;
EU868 16dbm;
KR920 14dbm;
IN865 20dbm;

Receiving Sensitivity

-136dBm(LoRa,Spreading Factor=12,Bit Rate=293bps );
-121dBm (FSK,Frequency deviation=5kHz, Bit Rate=1.2kbps)

Antenna Type

Built-in antenna

Communication Distance

Up to 10 km
(visible linear obstacle-free transmission distance , actual transmission distance depends on the environment )

Data Transfer Rate

0.3kbps~50kbps

Modulation

LoRa/FSK (Note: You can choose one of them)

Supportable LoRaWAN Band

EU863-870,US902-928,AU915-928,KR920-923,AS923-1,AS923-2,AS923-3,
IN865-867,CN470-510

(Note: The frequency band is optional and needs to be configured before shipment)


Physical:

  Main Body Dimension

  57mm x 35mm x 15.2mm

  Weight

  48.9 g

  Operating Temperature

  -20℃ ~ 55℃

  Environment Humidity Range

  <90% RH (No condensation)

  Storage Temperature

  -40℃ ~ 85℃