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Overview: The Code-Alarm MV-3 Dual-stage Microwave Sensor, using a
unique RF technology, detects the movement of mass through a protected area,
such as a person reaching into the interior of your vehicle. The sensor provides
ideal protection for convertibles, plus protects your possessions inside your
Detection Fields: The sensor has two fields of detection, exterior and
interior. When motion is detected in the exterior field, the unit will cause the
alarm to emit a series of warning tones. If the interior field is penetrated,
the unit will cause the alarm system to trigger a full alert. The shape of the
detection fields are symmetrical and elliptical, so placement and orientation
can change the effectiveness of the detector.
Mounting: The MV-3's module should be mounted near the center of the
interior of the vehicle, with the LED and adjustment dials facing upward. The
provided "Y" harness allows you to plug in the Microwave Sensor, as well as a
Shock Sensor, using one port on the alarm's control module.
Note: The plug on the "Y" harness will not fit the port
on the Shock Sensor included with the Code-Alarm CA1151, CA1551, CA6151, or
CA6551 alarms. The plug must be cut off and hardwired to the shock sensor's
Adjustments: The sensor has two dip switches that allow you to set the
sensitivity and configure the unit to the desired mode of operation. The unit
can be set with the dip switches to Arm Mode with interior protection only or
with both interior and exterior protection. Two rotary potentiometers are
located on the top of the module for adjusting the exterior and interior
sensitivity independently. Setting the sensitivity too high can cause false
triggers and annoying pre-warn chirps when someone walks by the vehicle in a