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Vintage Cal Custom Ultrasonic Vehicle Security System No. 958 NEW in box
Vintage Cal Custom Ultrasonic Vehicle Security System No. 958 NEW in box
PRICE:
Regular price
$35.00 USD
Regular price
Sale price
$35.00 USD
Unit price
per
The Cal Custom Ultrasonic Vehicle Security System No. 958 is a vintage, retro-style aftermarket car alarm that was popular in the 1970s and 1980s. It relied on high-frequency sound waves inside the vehicle to detect intruders. [1]
Key Features and Operation
Ultrasonic Detection: The system emitted a silent, high-frequency sound wave to fill the car's interior. If a window was broken or a door was forced open, the sound waves would bounce off the moving object and trigger the alarm.
Universal Fitment: Designed as an aftermarket universal add-on, it could be wired into a wide variety of classic cars and trucks.
Control Box: The main module (No. 958) was typically mounted under the dashboard and wired to the vehicle's horn or an external siren. [1]
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