https://www.thethingsnetwork.org/device-repository/devices/dragino/sw3l/
SW3L - Flow Sensor | Device Repository for LoRaWAN
SW3L LoRaWAN Outdoor Flow Sensor
flow sensor devicerepository
https://www.thethingsnetwork.org/device-repository/devices/thermokon/dpa-lrw/
DPA+ LRW - Pressure & Volume Flow Sensor | Device Repository for LoRaWAN
Differential Pressure and Volume Flow Sensor
flow sensor devicedpalrw