LoRa Siren


The LoRa siren developed by Netvox has been designed to be used in conjunction with other sensors within your LoRaWAN smart building network.

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The LoRa siren developed by Netvox has been designed to be used in conjunction with other sensors within your LoRaWAN® smart building network.  The LoRaWAN® alarm provides an audio warning when any of the other connected sensor alarms are triggered.

The R602A has four kinds of alarm sounds – fire alarm, emergency alarm, intruder alarm and doorbell sound in addition to high brightness flashing lights.

This DC powered smart warning device is easy to install and can be retrofitted to your existing LoRaWAN® alarm and security system.

***Awaiting certification***


  • LoRaWAN® Class C compatible
  • Wireless range of up to 10km (depending on environment)
  • Frequency Hopping Spread Spectrum (FHSS)
  • Improved interference immunity
  • Easy set up and installation
  • Data is encrypted and secure
  • Over-the-air updates (future)

We can supply third-party online wireless sensor monitoring and notification system to view data and set alerts via SMS text and email.

Ask us about our zero-touch provisioning service, this sensor can be supplied pre-configured and ready to go.



Input Power DC +12V
Working Current (max) 250mA (DC 12V)
Standby Current (max) 30mA (DC 12V)
Alarm sound level (at three meters) LUX(TBD)


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 Built in antenna
Communication Range Up to 10km (actual transmission distance depends on the environment)
Data Transfer Rate 0.3kbps~50kbps
Spread Technique LoRa/FSK
Available Frequency EU868 (others are available on request)


Dimensions Φ 85mm x 52mm
Environment Temperature -20°C ~ 55°C
Environment Humidity Range <90% RH (No condensation)

Key documents & information

Discounted Trade Pricing: Contact us for trade pricing, to place an order or to discuss your IoT projects.

All of our products are available to customers throughout Europe. For more information on shipping costs, currency conversions and lead times, please contact our technical sales team.

Our technical sales team are also happy to advise customers on the best LoRa sirens and sensors to suit your specific smart building and security project requirements.

Shipping available across Europe
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Additional information

Dimensions 85 × 85 × 52 mm


Red, White

Measurements Taken

Power Source




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