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DF Alarm Padlock Anti-Theft Lock Alarm Chain lock security bike lock alarm padlock

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Quick Details

Brand Name: DF
Type: Alarm Padlock
Place of Origin: Zhejiang China
Lock core structure: Pin tumbler mechanism
Size: 70L*35W*90H
Color: Chrome/Bronze/Black
Material: Zinc Alloy
Package: Blister card packaging
Model Number: 8325
Net Weight: 390g
Key: 3Keys
Suitable for: Door/ Warehouse /Drawer
Packaging Detail: Blister card packaging
Selling Units: Single item
Single package size: 18X12X5 cm
Single gross weight: 0.5 KG
Package Preview:,
Ningbo Defend Locks Co., Ltd.
Gold Supplier
Response Rate
On-time delivery rate
US$ 4,000+
R&D staffs
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Product Description
Alarm Padlock
Compared with the ordinary padlock, the alarm padlock has added a vibration alarm function and has a stronger anti-theft performance. When changing the direction of the lock lever, you can choose to alarm or not to lock. Alarm padlocks are widely used in doors, warehouses, drawers, etc.
Certifications & patents
Design Certificate
This product has obtained the design patent certificate of the Intellectual Property Office of the People's Republic of China.

Patent No: ZL 2014 30197960.3
Details Images
Zinc alloy
White /bronze
Lock core structure
Pin tumbler mechanism
4 keys
Alarm decibel
Suitable for
Door/ Warehouse /Drawer etc.
10 mm heat treated hardened locking lever

4 Copper keys
Double row pin tumbler mechanism lock core
Alarm function
Waterproof structure
Products Show
Packing & Delivery
1. We can print LOGO according to customer needs.
2.Usually we use English packaging by default, customers can customize packaging and patterns, but need to pay additional fees.
3.We can provide packaging solutions and design solutions according to customer needs.
Why Choose Us
Our Services & Strength
Ningbo Defend locks Co., Ltd includes R&D,produce and sales,All the products have our own patents, Some of products got through Europe CE certificate, Every process of our products is strictly controlled.Our products are sold all over the world.We also have a high proportion in domestic market.
Quality Inspection
Ready to ship
Company Profile
   Ningbo Defend locks Co., Ltd was founded in 2016, Always focus on R & D, production and sale different types of motorcycle locks,bicycle locks and door locks, especially motorcycle alarm locks, which is located in Ningbo port with convenient transportation.
    Since the company was founded, In the spirit of “ Pursuit of excellence, continuous innovation”, Continuously develop products to meet market demand, optimizing and improve product structure and performance, satisfy customer requirement. Our products are sold to Europe, Middle East, Africa, South-East Asia, America and all over the world. We also have a high proportion in domestic market.
    “Integrity, efficiency, innovation and win-win” are the consistent tenet of the company's operation .”Quality first, customer first” Is the business philosophy we always adhere to, Build brand with integrity, high quality wins the market . DF locks welcome domestic and oversea friends to visit and guide, we will make great efforts to serve you in any way.
Q1.Are you a factory or a trading company?
A:We are a factory specializing in the R & D and production of various types of locks, located in Ningbo City.

Q2. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent,  we can pack the goods in your branded boxes after getting your authorization letters.

Q3. What is your terms of payment?
A: TT/Western Union/Trade Assurance 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.

Q4. What is your terms of delivery?

Q5. How about your delivery time?
A: The specific delivery time depends on the items and the quantity of your order.Generally we have some in stock.

Q6. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

Q7. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.

Q8. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.

Q9: How do you make our business long-term and good relationship?
A:1. First of all, we are a factory without middlemen to earn the price difference; second, our product quality has its own strict control; third, we have enough supply to provide customers with stable supply.
A2. We respect every customer as our friend and we sincerely do business and make friends with them,  no matter where they come from.