14 year factory latest design smoke and carbon monoxide 2 in 1 home alarm siren

1. With 13 years of export experience. 
2. Professional team in each department. 
3. Professional test equipment.
4. International and domestic certificate.

With 10 years experience in this field, we now have long term cooperation partner in internation express, air transportation, ocean shipping etc. We are expecting to provide valuable information to our honored clients.

1. Do you worry about our company?
--Definitely not ! 10 years company, welcome company visit once we confirm the meeting.
Alibaba also has verified all our information and offers a guarantee.
2. What is the single most important thing you can do when it coms to fire safety in your home? 
-- All experts agree that without a doubt, the most important step to take is to make sure you have working smoke detectors installed.
3. Why do you choose YANJEN ? Any advantages?
-- The answer is Yes. There are 5 advantages. 
(1) All our products has produced agaist ISO standards,and some owns UL, EN certificates etc. 
(2) Customize: We have strong R&D team, which can make the customized product as your request.
(3) Free OEM service: (a) Silk-printing your Logo(≥1000PCS). (b) Design yourcolor box(≥3000PCS). 
(4)Mix order : We accept mix order, different model and small quantity order. 
(5) After-sale service: (a)2-5 Years Guarantee. (b) If you found any inferior-quality products from us, we will send new ones 
to replace for free in your next order after confirmed.
4. Can I order samples to test the quality?
-- Sure.
5. May I have your catalogue and price list for trial order in MOQ quantity ?
-- All our smoke detectors were shown on alibaba, please have a detailed looking and choose the interested models in our 
site.