STI REX Dog Barking Entrance Alert

STI REX Dog Barking Entrance Alert


Put the ED-50 Rex device behind a door or wall, and when an unwanted visitor approaches, Rex will bark to scare them away.  Effective for deterring humans as well as animals, this product will detect movement up to 30′ away and play a loud barking dog sound.

Availability: Out of stock SKU: REX Download user manual


Visitors Hear the Sound of a Barking Dog When They Approach Your Door!

How would you like a German Shepard to sit right behind your front door and bark ferociously when someone (or something) approaches? What if that dog never had to be fed or taken care of at all?

Let me introduce you to your new, completely self reliant watchdog named Rex. Rex is an entrance alert device that plays the sound of a ferocious attack dog when triggered. It uses sonar technology to detect movement, allowing it to virtually see through doors and walls. When movement is detected, it plays a barking dog sound, causing burglars, potential burglars who are casing your home, and even wild criminals to run like bears!

Get creative and think of other useful locations to use this product. For example, we have customers who live in the Northwestern mountains put this product on their back porch to scare off hungry bears who are on the prowl for food. For people who are living alone, place this behind your front door to scare off unwanted visitors. A little deterrence goes a long way, and the Rex is a great deterrent that helps prevent crime before it actually happens.

Hear Rex Sound

Rex Barking Dog Entry Alert Features:

    • Four available sound features;
        • continuous rain forest sound
        • sounds of rain forest to announce visitors
        • barking sounds of dog
        • 15-20 seconds of barking dog sound following by alarm sound
    • A realistic bark that gets louder the closer the visitor is to the alarm–this makes the visitor think you have a real dog behind the door
    • Installation is a snap.  No wiring, no moving parts, nothing to connect.  Simply place the unit behind the door you want to monitor, plug in the supplied power adapter, and that’s all there is to it
    • Selector switch used to change sound
    • Sonar detects movement behind, around, through walls, windows, and doors
    • Sensitivity settings that allows unit to detect movement up to 30 feet away
    • Power supply (included) 12VDC, 100mA
    • Frequency is 2.4GHZ
    • Product weighs approximately 2.2 lbs
    • 90-day manufacturer’s warranty

Additional information





Kit Or Accessory


Wireless Features

Volume Control

Wireless Range

Sound at Entry

Sensor Type


Customer Reviews

Based on 2 reviews
Recomend REX the barking Dog Alarm
Works great.
You've just added this product to the cart: