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Al Qa'ida Casio Watch Timer
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Timers built using a Casio watch were first seen in early 2000. The device detects the watch alarm output to trigger the device. Several varieties of alarm detector circuitry have been seen (Sheets 03340 & 84071) with this being the simplest. Time delays up to 23:59 can be achieved.
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Time Delay:
User programmable up to 23 hours, 59 minutes in one minute increments.
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Power Source:
Standard 9-Volt batteries, connected through a slide switch on the side of the case, is used to power the detector circuit and detonator. The watch operates on its internal battery.
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Anti-Tamper Features:
None
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Watch Type:
This device used a Casio F-91W, but other digital alarm watches could be utilized.
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Size:
The plastic case containing the battery and detector components measures 57 mm square x 16 mm thick (2.25" square x 0.63" thick).
