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R311FB - Three-Axis Digital Accelerometer

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The 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 232 times (theoretical value), and sends the information of the number of movements or vibrations to the gateway for processing. Apply SX1276 wireless communication module.
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The 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 232 times (theoretical value), and sends the information of the number of movements or vibrations to the gateway for processing. Apply SX1276 wireless communication module.

• Wireless range of 10 km *1
• 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 (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

*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

41 uA /3.0V

Transmitting Current (max)

120 mA / 3.0V                     

Receiving Current (max)

11 mA / 3.0V            

Battery Voltage Measurement Accuracy

±0.1V


Frequency

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

10 km (line-of-sight, the actual transmission distance depends on the environment)

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


Physical

Main Body Dimension

57mm x 35mm x 14mm

Weight

48.9 g

Operating Temperature

-20℃ ~ 55℃

Environment Humidity Range

<90% RH  (No condensation)

Storage Temperature

-40℃ ~ 85℃

 

INPUT
Model


R311FB

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