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Directed 509U

Ultrasonic Sensor for Security Systems (DEI Install Essentials 509U)

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• Ultrasonic Sensor for Security Systems
• Detects air pressure changes in the cabin of the vehicle
• Detect thieves entering vehicle without glass breakage
• Adds extra protection when used in conjunction with other security systems

Learn more about the dei-509u
List $94.99

$55.99

with warranty

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Product Highlights

• Ultrasonic Sensor for Security Systems
• Detects air pressure changes in the cabin of the vehicle
• Detect thieves entering vehicle without glass breakage
• Adds extra protection when used in conjunction with other security systems

Description

Directed
  • Ultrasonic Sensor for Security Systems
  • Detects air pressure changes in the cabin of the vehicle
  • Adds extra protection when used in conjunction with other security systems
  • Detect thieves entering vehicle without glass breakage
  • Effective only when all entrances are secured and closed (doors, windows, and sunroof)
  • NOT RECOMMENDED FOR CONVERTIBLE VEHICLES
  • Dimensions: 4.5"L x 5.3"W x 2"H
  • 1-year SonicElectronix.com warranty

Item Details

Manufacturer:

Directed

Model Number:

509U

Weight:

0.50lbs

Internal SKU:

dei-509u

Internal Product ID:

13985

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Customer Ratings & Reviews

Directed 509U
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Features
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Design
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Works really well

Would definitely buy another, really easy to install.

By Ivan on March 13, 2012

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This is a great sensor if you have a Air tight car

This is a great sensor if you have a Air tight car I have this sensor in my mini van with the 2 sensors over my 2 front pillar I have them set at max and have no problem with them as long as all windows are closed tight no Air flow in the car I have test this sensor in every way I have open my driver window and set the alarm and it will not last a min and the alarm is set off I have put a stuff doll on my dash and set the alarm with all windows closed and rock the car to the doll drop off the dash and set off the ultrasonic sensor this sensor is 100% I have set the alarm and open a back lift gate and the ultrasonic sensor was set off I even open the back vent window 3 out of 5 times the sensor will see the air flow from the vent.

By mike on March 22, 2011

16

found this helpful.
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