While there are many types of temperature sensors available in the market, the DS18B20 arduino Temperature Sensor form DALLAS is the best choice in applications which require high accuracy and high reliability. Its ultra-small size, low hardware overhead, strong anti-interference capability and high accuracy, together with other additional features makes DS18B20 even more popular among users. For electronic enthusiasts and hobbyists, the DS18B20 is a good start for learning and developing temperature-dependent prototypes. This sensor can be directly plugged and used with our new IO expansion shield. Type Selection of Temperature Sensors Name Gravity: I2C Non-contact IR Temperature Sensor For Arduino Gravity: Analog LM35 Temperature Sensor For Arduino Gravity: Waterproof DS18B20 Sensor Kit Gravity: DS18B20 Temperature Sensor Gravity: Analog High Temperature Sensor SKU SEN0226 DFR0023 KIT0021 DFR0024 SEN0198 Operating Voltage 3.3V/5V 3.3V/5V 3.0V~5.5V 3.3V~5V 3.3V~5.5V Operating Current 2.7μA 2.7μA