Can sound be decreased on door alarm

Your question doesn't make sense as there is no alarm on this (totally mechanical) device. It is a very effective piece if kit, however.

My door has a 3 inch step below it. Will this still work?

Yes ,as long as its not directly under the door

To seller pas24 certificate is a minimum door build standard. in what way is the device earning pas24 certificate for security pls?

This is brilliant very secure much better and police said was perfect I bought it after. Break in

Will this hold a door closed on the other side of the door. I.e. our door opens outwards.

Not really, in my opinion. It's designed for inward opening doors.

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DoorJammer Portable Door Lock Brace for Home Security and Personal Protection (DJ3 - DoorJammer (Standard)), Red

Product ID: 104197554

Details

Brand
Door-Jammer
Colour
Red
Finish type
Glossy
Manufacturer
Penn-Elcom
Material
Alloy Steel
Mounting type
Under Door

🎒Compact 210g portable design

⚙️Patented steel displacement tech

🛡️Police-accredited security

¥9107

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

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Description

🛡️ Lock down your space anywhere, anytime—security that travels with you!

UNIVERSAL FLOOR GRIP - Innovative hinge system anchors firmly on carpet, tile, or laminate.
AWARD WINNING STRENGTH - Police-accredited and PAS24 impact-tested for trusted protection.
INSTANT FORTRESS SETUP - Secures any inswing door in seconds—no tools, no hassle.
EMERGENCY QUICK RELEASE - Unique upward removal lets you exit fast when it matters most.
POCKET SIZED PEACE OF MIND - Ultra-lightweight and compact, fits effortlessly in your bag or pocket.

The DoorJammer DJ3 is a patented, police-accredited portable door lock brace designed exclusively for inswinging doors with a minimum 3mm clearance. Crafted from durable alloy steel, it installs in seconds without tools, providing tested resistance against forced entry. Lightweight and compact at just 210g, it fits easily in your bag, making it ideal for home, travel, or office use. Its innovative design grips all floor types securely and features a quick-release mechanism for emergency exits, delivering reliable, award-winning security wherever you go.

Specifications

ASIN	B07HM7X6TT
Best Sellers Rank	3,080 in DIY & Tools ( See Top 100 in DIY & Tools ) 101 in Door Hardware & Locks
Brand	Door-Jammer
Colour	Red
Customer Reviews	4.4 4.4 out of 5 stars (2,803)
Finish	Glossy
Item Dimensions L x W x Thickness	7L x 4W x 10.8Th centimetres
Item Weight	210 Grams
Manufacturer	Penn-Elcom
Material	Alloy Steel
Model Number	91355
Mount Type	Under Door Mount
Number of Packs	1
Number of Pieces	1
Part Number	91355
Product Style	Modern
UPC	814953024170
Unit Count	1.0 count

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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.

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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.

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

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¥9107

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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