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Dragino DDS20-LS Solar LoRaWAN Ultrasonic Liquid Level Sensor

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₹ 9,300.00
Dragino DDS20-LS Solar LoRaWAN Ultrasonic Liquid Level Sensor
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  3. Dragino DDS20-LS Solar LoRaWAN Ultrasonic Liquid Level Sensor
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Dragino DDS20-LS Solar LoRaWAN Ultrasonic Liquid Level Sensor

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Dragino DDS20-LS is a solar-powered LoRaWAN® ultrasonic liquid level sensor designed for non-contact liquid-level monitoring in tanks and containers. Installed against the bottom of a compatible container, it uses ultrasonic sensing to measure liquid level without requiring the sensor to directly contact the liquid or a hole to be opened in the container. The DDS20-LS provides a valid measurement range of 20mm to 2000mm with accuracy of ±(5mm + S × 0.5%), where S is the measured value. It supports LoRaWAN 1.0.3 Class A communication, Bluetooth 5.1 configuration, LoRaWAN remote configuration and wireless OTA firmware updates. With an IP66 enclosure, solar panel, 3000mAh rechargeable Li-ion battery and IN865 frequency support, it is suitable for long-term remote liquid-level monitoring applications in India.

₹ 9,300.00 9300.0 INR ₹ 9,300.00

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  • LoRaWAN® 1.0.3 Class A compliant
  • Non-contact ultrasonic liquid level measurement
  • Measures through container bottom (no liquid contact required)
  • Valid level range: 20mm – 2000mm
  • Accuracy: ±(5mm + S × 0.5%)
  • Suitable for toxic, corrosive, and high-pressure liquids
  • Ultra-low power consumption
  • IP66 waterproof enclosure
  • Integrated solar panel + 3000mAh Li-ion battery (DDS20-LS)
  • BLE v5.1 for local configuration
  • Remote configuration via LoRaWAN®
  • Wireless OTA firmware update support
  • AT command configuration
  • Downlink support for parameter changes
  • Battery level monitoring
  • Pre-loaded LoRaWAN® keys for easy activation
  • Supports IN865 band

General Specifications

  • Supply Voltage: 2.5V ~ 3.6V
  • Operating Temperature: -40°C to +85°C
  • Enclosure Rating: IP66
  • Cable Length: 25cm
  • Device Size: 14.5 × 8 × 5 cm
  • Device Weight: 190 g

Measurement Specifications

  • Measurement Method: Ultrasonic (Non-contact)
  • Valid Level Range: 20mm – 2000mm
  • Accuracy: ±(5mm + S × 0.5%)
  • Installation: Bottom-mounted external sensor

LoRaWAN® Specifications

  • Protocol: LoRaWAN® 1.0.3 Class A
  • Frequency Bands: IN865
  • Additional Band Support: 410 ~ 528 MHz (Band 2 LF)
  • Max RF Output: +22 dBm
  • RX Sensitivity: Down to -139 dBm
  • High interference immunity

Power Specifications (DDS20-LS)

  • Solar Panel: Integrated
  • Battery Type: 3000mAh Li-ion (Rechargeable)
  • Sleep Mode: 5µA @ 3.3V
  • LoRa Transmit: 125mA @ 20dBm, 82mA @ 14dBm

The Dragino DDS20-LS LoRaWAN® Liquid Level Sensor is ideal for:

  • Smart liquid storage monitoring
  • Industrial tank level monitoring
  • Smart liquefied gas monitoring
  • Chemical storage tanks
  • Acid and alkali storage monitoring
  • Sealed container liquid measurement
  • Remote water tank monitoring
  • Smart city and utility infrastructure

No. The DDS20-LS is installed below the container and measures through the tank bottom without requiring any hole or direct contact with the liquid.

Yes. Since it is a non-contact ultrasonic sensor, it can safely measure toxic substances, strong acids, strong alkalis, and liquefied gases in sealed containers.

The DDS20-LB uses an 8500mAh Li-SOCl₂ battery, while the DDS20-LS includes a solar panel with a 3000mAh rechargeable Li-ion battery for long-term autonomous outdoor deployment.

Documents

User Manual
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DDS20-LS_Datasheet

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DDS20-LS_Firmware 

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