https://www.thethingsnetwork.org/device-repository/devices/decentlab/dl-optod/
DL-OPTOD - Optical Dissolved Oxygen and Temperature Sensor | Device Repository for LoRaWAN
The Decentlab DL-OPTOD consists of dissolved oxygen and temperature sensors. It is suitable for use in wastewater treatment, industrial effluent treatment,...
optical dissolved oxygendl
https://mydevices.com/product/decentlab-dl-optod-001-optical-dissolved-oxygen-and-temperature-sensor/
DecentLab DL-OPTOD-001 Optical Dissolved Oxygen and Temperature Sensor - myDevices
optical dissolved oxygendl