Sku: R311FB-AS923

Availability: Many In Stock
Sku: R311FB-AS923

NETVOX LoRaWanWireless Activity Event Counter is a device detects the number of movements or vibrations (such as detecting the motor a few times a day), the maximum number of movements or vibrations can reach 2^32 times (theoretical value), and sends the information of the number of movements or vibrations to the gateway for processing. Apply SX1276 wireless communication module.

R311FB vibration alarm: The device detects sudden movement or vibration, and the quiescent state changes. The device waits for a certain period of time (DeactiveTime) to enter the quiescent state and counts 1 time for the cumulative number, sends a report of the cumulative number of vibrations, and restarts the preparation for the next detection. If the vibration continues to occur, the timing of DeactiveTime restarts until it reaches a standstill to count 1 time for the cumulative number. The count data is not saved when it is powered off.

 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
*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 41uA/3.0V
Tx Current 120mA/3.0V
Rx Current 11mA @3.0V
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

R311FB - Netvox LoRaWan Wireless Activity Event Counter

Sku: R311FB-AS923

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