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DS18B20 Waterproof Digital Temperature Sensor Probe 100cm is a 1 Meter Long Waterproof, sealed and pre wired digital temperature sensor probe based on DS18B20 sensor. It is very handy for when you need to measure something far away, or in wet conditions. Because they are digital, you don't get any signal degradation even over long distance. These 1 wire digital temperature sensors are fairly precise (±0.5C over much of the range) and can give up to 12 bits of precision from the onboard digital to analog converter. They work great with any micro controller using a single digital pin, and you can even connect multiple ones to the same pin, each one has a unique 64 bit ID burned in at the factory to differentiate them. Usable with 3.0 5.0V systems. Cable Specifications: Stainless steel tube 6mm diameter by 30mm long Cable is 36" long / 91cm, 4mm diameter (1 Meter Long) Contains DS18B20 temperature sensor Three wires Red connects to 3 5V, Black connects to ground and White is data. Package Includes : 5x Waterproof Digital Thermal Probe DS18B20 1 meter cable.