The Dragino SW3L is a LoRaWAN Flow Sensor. It detects water flow volume and uplink to IoT server via LoRaWAN network. User can use this to monitor the water usage for buildings.

SW3L is powered by 8500mAh Li-SOCI2 battery, It is designed for long term use up to 10 years. (Actually Battery life depends on the use environment, update period.)

The SW3L will send water flow volume every 20 minutes. It can also detect the water flow status and send Alarm, to avoid the waste for water usage such as broken toilet case.

SW3L is designed for both indoor and outdoor use. It has a weatherproof enclosure and industrial level battery to work in low to high temperatures.

Each SW3L is pre-load with a set of unique keys for LoRaWAN registration, register these keys to LoRaWAN server and it will auto connect after power on.

Default FW in AS923, but it support US915, AU915 and all 900MHz Frequency by loading different FW, it could also support 868MHz if loading 868MHz FW, but there will be slight 0.5-1dB loss here.

Features:

LoRaWAN v1.0.3 Class A protocol
Bands:CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
Upload water flow volume
Monitor water waste
8500mAh industrial battery(none-rechargeable)
AT Commands to change parameters
Uplink on periodically and open/close event
Datalog feature
Remote configure parameters via LoRa Downlink
Firmware upgradable via program port
Wall Mountable
Outdoor Use

Applications:

Flow Sensor application
Water Control
Toilet Flow Sensor
Monitor Waste water

Specifications:

Environment

Operating Temperature

-40 ~ 85°C

Storage Temperature

-40 ~ 85°C

Protection Level

IP66

Flow Sensor Specification

SW3L-004	Diameter	G1/2" /DN15
	Measure Range	1~30L/min
	Max Pressure	≤ 2.0Mpa
	Measure	450 pulse = 1 L

LoRaWAN frequency and Countries/Regions

Frequency	Status	Countries/Regions
EU868	OK	Europe and other
AU915, AS923	OK	Australia
		New Zealand
		Brunei
		Cambodia
		Hongkong
		Indonesia
		Japan
		Laos
		Singapore
		Taiwan
		Thailand
		Vietnam
CN470	OK	China
US915	OK	USA
KR920	OK	Korea

Datasheet: SW3L datasheet.pdf

Operation manual: SW3L User manual.pdf

Configure manual: SW3L AT commands.pdf

Other documents: SW3L Power Analyze.xlsx

Decorder: SW3L decorder - TTN.txt

SW3L-004 - LoRaWAN Outdoor Flow Sensor for water usage monitoring - DN15/450 pulse/L