4817082772488192Elecfreaks Octopus Waterproof DS18B20 Temperature Sensor This sensor is a tempeterature detector used to test the liquid temperature based on 18b20. Product #: businesspro-Elecfreaks Octopus Waterproof DS18B20 Temperature Sensorhttps://www.businesspro.store/i/RHRx7ggAA2024-12-07 Regular price: $HKD$105.0 Available from: Businesspro MallIn stock