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STI Rex Plus ED-50 Security Alarm

STI Rex Plus ED-50 Security Alarm
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Protect your home with a specialized motion detector designed to simultaneously alert you and deter intruders. The Rex Plus Electronic Watchdog is always on duty, guarding and protecting. Rex can sense motion through thick doors, walls or glass. When motion is detected, Rex sounds one of four selectable alerts: an angry, barking watchdog, soothing sounds to alert you of a guest™s arrival, alert sounds of both an angry watchdog and a warning siren, or continual tranquil sounds of the rainforest.

  • Senses movement through walls, doors and glass
  • Barking gets more frequent as intruder gets closer
  • Plugs into any standard electrical outlet
  • Adjustable volume

The closer an intruder gets, the more frequent the barking. With an angry dog barking, intruders are encouraged to leave, and you have time to prepare if they stay.

  • Distant approach: Single or several barks
  • Medium distance: Single/multiple barks
  • Close approach: Fierce, continuous barks


  • Rex Plus Electronic Watchdog
  • AC Adapter

Technical Details

  • MPN: ED-50
  • UPC: 750215330019
  • Power Supply: 12 VDC, 100 mA
  • Frequency: 2.4 GHZ
  • Net Weight: 2.2 pounds, including AC adapter
  • Power Detecting: 0.22 Watts
  • Power Barking: 2.6 Watts
  • Size: 6(L) x 5-1/8(W) x 7-1/2(H) inches
  • Approvals: FCC

Also known as

  • Rex Plus Electronic Watchdog (ED-50)