iTemp is a software application for Palm OS handhelds that allows you to read and store temperature data from a Dallas Semiconductor Thermochron iButton module. iTemp allows you to:

• Choose the time to begin temperature taking
• Set a sampling rate
• Set high and low alarm thresholds
• Set when to stop logging

This method of data storage records when a critical thermal exposure occurred and helps you assign accountability for any resulting loss of product quality.

Once the data has been sampled, iTemp allows you to:

• View a chronological log of the temperature data
• View a graph of the temperature data
• View a histogram of the data
• View the High and Low alarms, and the duration that the temperature was in an alarm state.
• Save the data to a database (Enterprise edition only)
• Export the temperature data to a comma-separated value file (Enterprise edition only)

A Thermochron is a time/temperature recorder housed in a rugged stainless steel can about the size of 5 dimes stacked one on top of another. The Thermochron is small, rugged, and easily attaches anywhere--for example, on industrial hardware, boxes, crates, pallets, air cargo containers, refrigerators, semi trailers, railroad freight cars, and archival storage rooms.

You can order a Thermochron Starter Kit (DS1921K) from Dallas Semiconductor. It costs $25 USD and includes:

• Thermochron iButton (DS1921)
• iButton Keyring Fob Attachment (DS9093F)
• 9-pin Universal 1-Wire COM Port Adapter (DS907U-009)
• Blue Dot Receptor with RJ-11 Connector (DS1402D-DR8 )
• Instruction Sheet

Update Description
12/29/02 - iTemp v3.5
New in V3.5:

• Sony CLIE handhelds and Handspring Visor handhelds are now supported.
• Histogram now supports color.
• Only non-zero bins are displayed in histrogram.
• New "Fit to" on graph allows you to view entire mission on one screen.
• Can read/write extra information to thermochron (for example, for shipping information). Data is written when mission is started, and read and saved to card.
• Addition of "Back" arrow on Histogram plot and log plot for quick access to raw data.
• Only ask about demo first time that no hardware is found.
• Allow tap anywhere on plot view to display values. This makes taps or sliding your stylus seem more sensitive.
• Addition of Menu Bar icon shortcuts.
• Added support of high resolution thermochrons models DS1921H and DS1921Z.

05/19/02 - iTemp v3.0
New in V3.0:

• iTemp now supports overdrive mode so the complete Thermochron data can be uploaded in ~2 seconds with no additional hardware.
• Provides color support for graphing and logging data, so you can easily see temperatures that are above range, below range, or in range.
• Provides VFS (Virtual File System) support for saving your Mission data to an external memory card in .csv format for easy import into Excel.
• Provides a "You pick the end date" on the Mission Menu to help you best set the sample rate for your Mission.
• Provides a display to show you how long your Mission will last based on the chosen sample rate.
• Provides complete built-in Demo Mode. This will allow you to try ALL the features of iTemp without hardware by using simulated data.

11/13/01 - iTemp v1.5
New in V1.5:

Celsius temperatures now supported

Larger range of temperature values for the High Alarm and Low Alarm setting.