Safety Technology International Rex Plus ED-50 Operation Manual

Operation Manual

TM

2306 Airport Rd., Waterford, Michigan 48327

Phone: [phone] • Fax: [phone] • www.sti-usa.com

The Electronic Watchdog

That Never Sleeps

ED-50

“WeProtect theThings that Protect You.”

®

Like father, like son. Introducing the next generation of Rex, the famous barking dog alarm. In addition to
the sound of a ferocious, attack dog, Rex Plus offers the sounds of the rainforest. Choose the sound that
suits you best. Try the continual sounds of the rainforest, or the option that allows you to use these same
sounds as an annunciator. Another option includes the angry, barking dog followed by the sound of a siren
for 20 seconds. Rex Plus is versatile and provides an excellent way to deter burglars, without the annoying
problems of owning a real dog. With his electronic radar eyes, Rex Plus can “see” through thick doors, walls
and glass. And once his cord is plugged into any standard 110 VAC electrical outlet, he’ll stay on duty around
the clock, indefinitely.

Rex Plus™ Features Include:

•

Your choice of four sounds:

• Continuous sound of the rainforest

• Barking sound of a ferocious attack dog

• Sounds of the rainforest to announce the arrival of visitors

• Barking dog and warning siren

•

Very realistic - barking gets more frequent as intruder gets closer.

•

Switches from the watchdog to the tranquil sounds of nature with the simple slide of a switch.

•

Senses movement through walls, doors and glass.

•

Variable distance sensitivity (up to 30’) as well as volume control.

•

No installation required.

Operation Instruction

1. Insert the adaptor plug into the unit, then plug AC adapter into outlet.

2. Choose the feature you wish by adjusting the switch on the back of the unit.

a. Rainforest (sound is continuous).
b. Watchdog - Switch on this function and start detecting any intruder or large moving objects. When

the intruder is 15 to 18 feet away, unit will bark once or twice. Barking gets more frequent as intruder
gets closer.

c. Rainforest (entrance chime) - When the visitor is 15 or 18 feet away, the unit will sing the melody to

announce the arrival of visitors.

d. Watchdog and Warning Siren - When the intruder is within 15 to 18 feet, the device will bark and a

siren will alarm for 20 seconds.

3. Turn on the “VOLUME” switch and adjust the required “RANGE”.
Note: Generally, the “RANGE” is adjusted to its maximum before delivery. Therefore, it needs no further

adjustment. In case it is too sensitive, turn the knob in a counter-clockwise direction to reduce the range.

Operation Instruction Caution: Rex Plus is designed for use indoors. Generally, the unit will not bark at a

moving object behind it, but it may at certain positions. In this case, try to change its position slightly
to be most effective. The unit should be placed at a height of 3-5 feet from the floor to obtain the widest
range of detection.

Detection Efficiency

Rex Plus’s radar waves can detect through a variety of materials with maximum efficiency. The following
chart serves as a guide.

MATERIAL EFFECT ON RANGE
Glass slight reduction
Wooden Doors slight reduction
Plaster Walls medium reduction
Metal (steel, bronze, heavy reduction

aluminum) (detection is possible when metal is
moving or there is a clearance.)
Curtain Material slight reduction
Fiberglass or Plastic full detection
Paper Cartons slight reduction