Tricorder

Tricorder is a simple tricorder for Android, using your phone''s real sensors to detect magnetic fields, gravity, etc.

Tricorder for Android displays gravitation and magnetic field, environmental and geographic information, based on information from the sensors in the device.

The app handles both portrait and landscape modes. It runs on QVGA, HVGA and WVGA displays, in landscape and portrait modes. On real hardware, it has been tested on the T-Mobile G1, Google ION / HTC Magic, HTC Tattoo, Motorola Droid, and HTC Nexus One, with some testing on the Hero (not the Sprint one), and LG.

Note: The newer versions of app run on Android 1.6+ OS. People with 1.5 phones can continue to use version 3.10.

Web site: http://code.google.com/p/moonblink/wiki/ Tricorder
You can download at: http://apk.cuaban.net/detail/7556/ Tricorder .html