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LoRaWAN Ultrasonic Liquid Level Sensor

SKU#
WSLRW-ULC
Replaced by
Replaced SKU
WSLRW-ULC is LoRaWAN Ultrasonic Level Sensor to measure the level of liquid surface of water, oil... This level sensor utilises the ultrasonic technology to measure the surface of liquid, the principle is to measure the time of flight of the ultrasound pulse in the air environment. The ultrasound pulse will be ejected from ultrasonic transducer, go thru the air and reaching the surface of liquid, then reflected back to the ultrasonic transducer, the measuring circuit will measure the time of flight of the Pulse then calculate the distance from transducer to the surface. With Ultra-low Power design and smart firmware allow the sensor can last up to 10 years with 02 x AA-type batteries (depends on configuration). The sensor will transmit data in kilo-meters distance to LoRaWAN gateway, any brand on the market.

For Applications

Flood Monitoring, Level Monitoring, Process Monitoring, Safety Monitoring, Smart Irrigation, Infrastructure Monitoring

LoRaWAN communication

LoRaWAN communication standard to allow sensor connect to any LoRaWAN Gateway on the market.

High Accuracy & Stable

Advanced ultrasonic sensor with digital signal processing to deliver high accuracy and stable measurement of level or distance for liquid surface

10-Year battery

Ultra-low power sensing technology from Daviteq with Ultra-low power wireless technology allow the sensor can last up to 10 years with 02 x AA type batteries.

IP68 Outdoor

IP68 design for both Indoor and Outdoor applications

SensorUltrasonic sensor
Measurement range250∼5500mm (Non-flat surface will give shorter range in actual condition)
Resolution±5.0mm
Accuracy±10mm + S*0.3% (with S is the measured value)
Sensor sampling rateconfigurable from 10s up to 3600s
Alarm settingsetting the alarm threshold for calculated value
COMMUNICATION
SF factorsSF7∼SF12
AntennaInternal Antenna 2.0dbi
Battery02 x AA size 1.5VDC, battery not included
RF Frequency and Power860∼930MHz, 14∼20dBm, configurable for zones: EU868, IN865, RU864, KR920, AS923, AU915, US915
ProtocolLoRaWAN® Class A
Data sending modesInterval time and when alarm occurred
Configurationvia downlink or offline cable (software is free)
RF Module complies toETSI EN 300 220, EN 303 204 (Europe) FCC CFR47 Part15 (US), ARIB STD-T108 (Japan)
Working temperature-15∼60℃ (with AA L91 Energizer®)
DimensionsH180xW50xD40
Net-weight250g
HousingPolycarbonate & POM plastic, IP68

Dimension

Application Notes

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Non-Contact Measurement: Reduce wear and maintenance.
Wide Range of Applications: Suitable for fluids, pastes, sludge, and bulk materials in harsh environment.
Density and Humidity Insensitivity: Don't affect by humidity and density.
Versatility: Used in oil and gas, chemical processing, water treatment, and food industries.
Height Limitations: Best for small and medium liquid tanks.
Medium conditions: Consider foaming liquids, turbulence, and viscosity.
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