Temperature Sensor - Waterproof (DS18B20) - SEN-11050 - SparkFun

This sealed digital temperature probe lets you precisely measure temperatures in wet environments with a simple 1-Wire interface.

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Usable with 3.0V to 5.5V power/data. Stainless steel tube 6mm diameter by 35mm long. ±0.5°C Accuracy from -10°C to +85°C. Uses 1-Wire interface- requires only one digital pin for communication. Comes with a resistor module so it is easy to connect on the Arduino board. The DS18B20 Waterproof Digital Temperature Sensor Kit provides 9 to 12-bit (configurable) temperature readings over a 1-Wire interface, so that only one wire (and ground) needs to be connected from a central microprocessor.

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