6123569882988544Elecfreaks Octopus Waterproof DS18B20 Temperature Sensor This sensor is a tempeterature detector used to test the liquid temperature based on 18b20. Product #: newdigitalhk-Elecfreaks Octopus Waterproof DS18B20 Temperature Sensorhttps://www.newdigitalhk.store/i/VwVq3ogAA2024-05-31 Regular price: $HKD$108.0 Available from: New Digital StoreIn stock