SW3L-LB DN25 G1 LoRaWAN Flow Sensor 868MHz

The SW3L-LB from Dragino is a LoRaWAN flow sensor specifically designed for monitoring water consumption in buildings. It sends water flow data to the IoT server every 20 minutes. The sensor can also detect the status of the water flow and send alarm notifications to prevent water wastage, such as that from faulty toilets. Encased in a weatherproof housing, this robust sensor node is ideal for outdoor use and is powered by an 8500mA Li/SOCl2 battery, ensuring long operational life. The SW3L-LB is not just a simple sensor node but is specifically designed to facilitate the speedy deployment of industrial LoRa and IoT applications. The wireless part of the node is based on the SX1262, enabling data transmission over very long distances at low data rates. This ensures exceptional range, high interference resistance, and optimizes power consumption. Equipped with a powerful 48 MHz ARM microcontroller, 256KB Flash, and 64KB RAM, the SW3L-LB is ready for all types of projects. The SW3L-LB features an integrated BLE module, allowing convenient configuration of the sensor from your mobile phone. It also supports OTA updates via a private LoRa protocol, significantly simplifying maintenance. This sensor node is the third generation of the popular SW3L from Dragino and offers a mature LoRaWAN stack along with application software. You can use the pre-installed software for your IoT projects or adapt the software flexibly to different requirements.

Each sensor comes preloaded with a set of unique keys for LoRaWAN registrations. These keys are registered on the local LoRaWAN server and the sensor automatically connects when turned on if network coverage is available.

Recommended Accessories: 

• Lora Gateway

Features:

• G1 inch thread DN25
• Supports LoRaWAN v1.0.3 Class A protocol
• EU868 frequency band
• Ultra-low power consumption
• SX1262 LoRa Core
• Extremely low power consumption
• Open-source hardware/software
• Easy configuration with AT commands via Bluetooth V5.1, LoRaWAN downlink, or UART
• Support for wireless OTA firmware update
• Periodic uplink function
• 8500mAh Li/SOCl2 battery for long operational life
• Waterproof to IP65
• Optimized housing with new pressure relief vent
• External LoRa antenna

Application Examples:

• Flow sensor applications
• Water control in buildings
• Toilet flow sensors

Links and Downloads:

• Dragino Wiki

Technical Specifications:

• Manufacturer: Dragino
• Manufacturer SKU: SW3L-LB-EU868-010
• Thread: G1 inch thread DN25
• Microcontroller:
• MCU: 48 MHz ARM
• Flash: 256KB
• RAM: 64KB
• Power supply: 2.5V ~ 3.6V
• Operating temperature: -40 ~ 85°C
• LoRa Specifications:
• Frequency range: 868MHz / EU868 
• Maximum +22 dBm constant RF output relative to
• RX sensitivity: up to -139 dBm
• Excellent blocking immunity
• Flow Sensor DW-010:
• Diameter: G1 inch / DN25
• 64 pulses correspond to 1 liter
• Cable length: 45cm
• Battery:
• Li/SOCl2 non-rechargeable battery
• Capacity: 8500mAh
• Self-discharge: <1% / year @ 25°C
• Maximum continuous current: 130mA
• Maximum pulse current: 2A, 1 second
• Power Consumption:
• Sleep mode: 5uA @ 3.3V
• LoRa transmit mode: 125mA @ 20dBm, 82mA @ 14dBm
• Dimension: 127 x 66 x 48mm
• Weight: 422.7g

Package Contents:

• 1x SW3L-LB DN25 G1 LoRaWAN Flow Sensor 868MHz
• 1x External 868MHz Antenna