Stupid question: if I set it by the front door and then walk out the front door to leave, won't I set it off?

Yes. But it will stop when you are out of range. We just say as loud as we can, KILLER SHUT UP WELL BE BACK SOON! :-)

My front door which I want to guard is made of steel/aluminum. Would it work sensing anyone that approaches my door from the outside?

Mine does not work through my metal door, but it also has to go through the storm door also. It does work through walls and ceilings.

Is there a way to remotely "disarm" it (e.g. cell phone app)?

Devices like Wemo are now widely available, fairly cheap, connect to the internet through one's home router & can so be controlled by Amazon Electra or a cell phone app. It should now be quite easy to interface one with a device like Rex Plus Barking Dog Alarm, to turn the speaker of f& on remotely.

what does the bark sound like? Can we hear a sample?

The sound is a vicious German Shepard barking...I don't have the sound for you to hear it. So sorry!

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Safety Technology International, Inc. ED-50 Rex Plus Electronic Watchdog, Barking Dog Alarm

Product ID: 1258794

Details

Brand
STI
Color
Light Blue
Compatible Devices
Smartphone
Power Source
Corded
Product Dimensions
6.6"L x 5.5"W

⚡24/7 continuous power

🔊65 dB audible alert

🛡️ultrasonic motion detection

€ 230.94

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

Description

🐕‍🦺 Your tireless electronic watchdog—always on, always alert!

SEE THROUGH SECURITY - Ultrasonic sensor penetrates walls, doors, and glass to detect movement beyond sight.
COMPACT LIGHTWEIGHT - At just 0.77 lbs and floor-mountable, it fits discreetly anywhere indoors.
DYNAMIC INTRUDER ALERT - Barking frequency intensifies as movement gets closer, creating an escalating deterrent.
FOUR DISTINCT ALERT MODES - Choose from soothing rainforest sounds, protective watchdog barks, guest arrival chimes, or combined siren alerts.
UNSTOPPABLE 24 7 GUARDIAN - Plugs into any standard 110V outlet for nonstop protection—no breaks, no downtime.

The STI ED-50 Rex Plus is a compact, plug-in electronic watchdog alarm featuring ultrasonic motion detection and four selectable sound modes, including realistic barking and sirens. Operating continuously on standard 110V power, it delivers 65 dB alerts that escalate with intruder proximity, making it ideal for homes and businesses seeking reliable, no-maintenance indoor security.

Specifications

ASIN	B002XITC5G
Audible Noise	65 Decibels
Best Sellers Rank	#218,350 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #180 in Smoke Detectors & Fire Alarms
Brand	STI
Built-In Media	Barking Dog Alarm,Audible/Annunciation
Color	Light Blue
Compatible Devices	Smartphone
Control Method	Touch
Customer Reviews	3.9 3.9 out of 5 stars (1,065)
Global Trade Identification Number	00750215330019
Item Dimensions L x W x H	6.6"L x 5.5"W x 10.6"H
Item Weight	0.77 Pounds
Manufacturer	Safety Technology Intl
Manufacturer Warranty Description	Limited 90 day warranty.
Mfr Part Number	ED-50
Model Number	ED-50
Mounting Type	Floor Mount
Power Source	Corded Electric
Sensor Technology	Ultrasonic Sensor
Size	1
UPC	783961712341 750215330019
Unit Count	1.0 Count
Voltage	110 Volts

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

€ 230.94

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

View all Trustpilot reviews