Sku: R718WA-AS923

Availability: Many In Stock
Sku: R718WA-AS923

NETVOX Wireless Water Sensor R718WA is an alarm device for water leakage detection. When the water sensor detects a leak, it will send an alarm message to the gateway. When the water sensor detects that there is no water leak again, it will send a back to normal status message to the gateway, which uses the SX1276 wireless communication


Example Applications.

  • Engine room
  • Warehouse
  • Smart home
  • Archives
  • Air conditioning
  • Semiconductor plant
  • Data centre


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 2 x 3.6V ER14505 AA lithium batteries
Battery Life 5 years (Conditions: ambient temperature 25 °C, 15 min
heartbeats, txpower = 20dBm, LoRa spreading factor SF = 10)
Sleep mode Current 23uA
Wake up mode Current 6.3mA @3.3V
Tx Current 120mA @3.3V
Rx Current 11mA @3.3V
Low Voltage Threshold 3.2V
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


Water Sensor

Water Line Material

UL2547 28AWG

Working Temperature (Max.)





1000mm (±5mm)

Water Line Flame Resistance


Water Line Length Limit

300m (theoretical value)

Water Sensor Size

L: 38.5 mm*W: 11.9 mm*H: 13.7 mm



Main Body Dimension

112mm x 65mm x 32mm

Sensor Dimension

43mm x 13mm x 12mm

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

R718WA - Netvox LoRaWan Wireless Water Leak Detector

Sku: R718WA-AS923

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