Sku: R311G-AS923

Availability: Many In Stock
Sku: R311G-AS923

NETVOX Wireless Light Sensor R311G, the built-in photosensitive sensor, can be used for external ambient light intensity detection. Together with other devices to perform wireless dimming functions, and wireless communication meets LoRa protocol standards. R311G is the environmental illuminance automatic detector and the reporter which can send out the environmental illumination report and is a

low-power, long range, wireless sensor that can accurately detect environmental illuminance indoor.


Principle of Operation

R311G is able to read environmental illuminance over the LoRaWAN network, mainly used to detect the environmental illuminance indoor , which through the wireless network communication module to collect the data sent to the data platform displayed. 

Example Applications

The device is universal an can be used for many applications. Ideally suited for a wide range of applications such as building automation, condition monitoring, predictive maintenance, security, healthcare and many more use cases. For example: 

Home / Schools / Classroom / Reading room / Laboratory

Offices PC room / Working / Meeting room / Canteen / Restroom Factories Production hall / Laboratory, inspection work / Storage Hospitals / Bedroom / Entrance area / Restaurant / Bars / Staircases 


Features of NETVOX Sensors

    • 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*:
    • At this website, users can find battery life time for varier models at different
    • 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

* Actual range may vary depending on environment.

* Battery life is determined by sensor reporting frequency and other variables


Technical Specifications

Input Power 2pcs 3.0V CR2450 button battery
Working Voltage DC 2.4V~3V
Standby Current 12uA/3.0V
Tx Current 120mA/3.0V
Rx Current 11mA @3.0V
Brightness Detecting Range 1~3000LUX
Voltage Threshold 2.4V
Battery Voltage measurement accuracy   ±0.1V



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



Main Body Dimension

57mm x 35mm x 15mm



Operating Temperature

-20℃ ~ 55℃

Environment Humidity Range

<90% RH (No condensation)

Storage Temperature

-40℃ ~ 85℃




User manual:


Battery Calculator: 

Netvox Battery Calculator 

Netvox LoRa Command Resolver: 

LoRa Command Resolver

R311G - Netvox LoRaWan Wireless Light Sensor

Sku: R311G-AS923

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