Temperature Probe

If you have a Matrix Orbital digital bay bus system in your PC, this DS18S20 2.5' long wired temperature probe will link to it and allow you to measure the temperatures on your RAM, mobo, video card, or any other component in your system. This product has a 30 day warranty.

This is actually a standard 1-wire bus DS18S20 "parasitic" temperature module from Maxim. It's called "parasitic" in that the sensor draws power directly from the data line, so you don't have to use a Vcc line in your cable.

Specifications:

• Unique 1-Wire Interface Requires Only One Port Pin for Communication
• Each Device has a Unique 64-Bit Serial Code Stored in an On-Board ROM
• Multidrop Capability Simplifies Distributed Temperature Sensing Applications
• Requires No External Components
• Can Be Powered From Data Line. Power Supply Range is 3.0V to 5.5V
• Measures Temperatures from -55°C to +125°C (-67°F to +257°F)
• ±0.5°C Accuracy from -10°C to +85°C
• 9-Bit Thermometer Resolution
• Converts Temperature in 750ms (max)
• User-Definable Nonvolatile (NV) Alarm Settings
• Alarm Search Command Identifies and Addresses Devices Whose Temperature is Outside Programmed Limits (Temperature Alarm Condition)

If you are wondering, yes, there is a 1-wire library for Arduino!For an example of a communication protocol with this item, check out check out this guide.