12V panel-mounted used metal security doors lock piezo buzzer with 85db

12V panel-mounted used metal security doors lock piezo buzzer with 85db

Company profile

Guangzhou Panyu Datong Electronics Co., Ltd is a professional sound components manufacturer 

founded in 1997, lying in the Pearl River Delta -- Panyu. We engage in producing, researching, 

and distributing electronic functional ceramics, new models of electronic components, chip 

components, and applied electronic products. The series of products (Piezoelectric elements, 

Piezoelectric buzzers, Automization discs, Transducers, Sensors and Security products) 

is widely used in E-bike, automotive electronics, home appliance, IT digital, communication industry. 

We win our market and customers by the continuous technology improvement, high quality and 

stability of products; We have always been the best cooperator in the field.

Our company owns the self-built factory building of 5000 square meters, employs over 100 people, 

of which 10% are technician, and has established the typical workshop of research and development. 

The management principle of concentrating and specializing in the electro-acoustic field has been 

built since our establishment. We are ISO9001:2008, ISO14001:2004 certified and have obtained 

several national patents. Through 18 years’ exploring, we ensure customers’ demands by customizing 

piezoelectric elements, buzzers and alarms etc.. Per month, we achieve to produce over 30 million pieces piezoelectric elements, 3 million pieces of buzzers, 500 thousand pieces of transducers, and 500 thousand 

pieces of alarms.

Quality services
1.All our products have Sample order and OEM Manufacturing
2.Small MOQ is available for frequent sales products
3.Under guarantee: if any non-human damage happen, we'll offer free repairing or replacement,

 but since we don't have much profit, the aftersale service is free, so we can offer free repairing 

or replacement except shipping cost .

4.Out of guarantee: we offer techical support in repairing parts at lower cost, and service free in 

charge.

Customization & design services:
1.We accepted customized projects 
2.Do not hesitate to share your idea with us, since we have experienced engineer team and we 

always do our best to help client's project.

Online service:
1.we are online all the time. any quetions, just feel free to get in contact with us !

Q1. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and 

packages before you pay the balance.

Q2. What is your terms of delivery?
A: EXW, FOB, CFR, CIF, DDU.

Q3. How about your delivery time?
A: Generally, it will take 30 to 60 days after receiving your advance payment. The specific delivery

time depends on the items and the quantity of your order.

Q4. 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.

Q5. 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.