Liquid Level Sensor (DC-powered)


The Netvox RA0711 is a LoRaWAN water level sensor which detects the depth of liquid.

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The RA0711 is a LoRaWAN® water level sensor which detects the depth of liquid. The wireless liquid level sensor uses a solid state, continuous (multi-level) fluid level sensor for measuring levels in water, non-corrosive water based liquids and powders.


  • 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 of up to 5 years (determined by sensor reporting frequency and other variables)
  • 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.



Power Supply Adapter DC Powered (12V/1.5A)
Working Current <90mA
RX Current 11mA @ 3.3V
TX Current (Max) 120mA @ 3.3V
Water Level Sensor Measurement Range 0-50m (optional)
Water Level Sensor Accuracy 0.25% FS (Typical)


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 10 km (line-of-sight, 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 Main Part: 111mm x 86mm x 41mm
Liquid Level Sensor Length 3m, 5m, 10m… etc. (Confirm at the time of ordering)
Weight 1012g
Working Temperature Range -20°C ~ 55°C
Storage Temperature -40°C ~ 85°C

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 team.

Our technical team are also happy to advise customers on the best LoRaWAN® water level sensors for their specific applications on an individual project basis.

Shipping available across Europe
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Additional information

Weight 1.12 g
Dimensions 111 × 86 × 42 mm



Measurements Taken

Power Source


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