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4840DATSENElectronics 4840DATSEN

Trailer Sentry Boat Trailer Anti-Theft Alarm System by Master Lock

Master Lock Electronics

Code:   4840DATSEN

Retail:$73.33

Price:$41.60

Shipping Weight: 3 pounds

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Master Lock Electronics - 4840DATSEN

Trailer Sentry Boat Trailer Anti-Theft Alarm System by Master Lock

Trailer Sentry Boat Trailer Anti-Theft Alarm System by Master Lock provides a new way to secure a trailer to a vehicle. The patent pending system continually monitors the trailer's lighting circuit and triggers a remote alarm if the trailer is disconnected from the vehicle or if the wires are cut. It works alongside any mechanical security devices to offer a new level of security, convenience and peace of mind.

  • Provides electronic security through a 110 decibel alarm siren that sounds when the trailer wiring is cut or disconnected
  • Acts as a power module to deliver needed power directly to the trailer from the vehicle battery
  • Alarm mounts under the hood and power module mounts under the vehicle with a voltage sensor to prevent battery run down
  • Detects if a light is burned out
  • Revolutionary theft protection for your boat trailer
  • Fully submersible
  • Trailer lights can be disconnected via the remote while trailer is submersed in water
  • Features remote lighting cut-off
  • Includes 1 fob
  • Simple installation

4840DATSEN - Trailer Sentry Boat Trailer Anti-Theft Alarm System by Master Lock














Ask the Experts about this Master Lock Electronics
Expert Answers about Trailer Sentry Boat Trailer Anti-Theft Alarm System by Master Lock - 4840DATSEN                                        Do you have a question about this Electronics?


  • Security Alarm System, Coupler Lock, and Wheel Lock Recommendations for a Trailer
  • I am sorry to hear about your trailer being stolen. I will help you to keep your new trailer secure. The Trailer Sentry Boat Trailer Anti-Theft Alarm System, # 4840DATSEN, will sound a 110 decibel alarm if the trailer is disconnected from the tow vehicle or if the wires are cut. It comes with a fob, like car alarms, that you can use to arm or disarm the unit. I also recommend a coupler lock like the Maximum Security Universal Trailer Coupler Lock, # DT25013, if you do not already have one.
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