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| The TAG |
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General
The "TAG" is a motion detecting alarm system for laptop computers and other high-dollar valuable
items. It includes a keychain transmitter and an alarm unit. Once armed, any motion will cause
the alarm unit to sound a piercing alarm tone that can only be reset using the keychain transmitter.
Technical
The 315 MHz coded signal from the transmitter is decoded and validated by an embedded microcontroller.
If motion is detected while in the armed state a 100 dB alarm tone is produced by a piezoelectric
annunciator. The wire tether attaches the alarm unit to the merchandise and also serves as the
receiving antenna. The alarm unit is powered by a single AA battery which provides over 1 week
of continuous use.
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