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1-Wire Soil Temp

Model: Thermometer DS18S20
Purpose: Measures temperature.
Purchased from: www.hobby-boards.com
Details:
Measures temperatures from -55C to +125C (-67F to 257F)
0.5C accuracy from -10C to +85C
9-bit thermometer resolution
 
Sensor has been soldered onto a piece of Cat5e Network Cable.
Using a few layers Heat Shrink and Lanolin the sensor should be waterproof. The outer layer of Heat Shrink has been folded over at the end to stop water from getting in.