Our service - NO EXCUSE


All technical issues must be solved within 12 hours.
All emails must be replied to within 2 hours at working time,
and it must be replied to within 24 hours at a non-working time.
 

Pay attention to when buying?

Payment method

1. We accept TT, Paypal, Western Union
2.Small amount by Paypal or Western Union; Big amount by bank transfer
If you have any questions, please feel free to contact us.

 

Shipment


1. Normally 1-3 working days after receipt of payment. If it is out of stock, we need a little time to process and we will leave notice or messages for that.
2. We do not pay for the customs tax charged from local customs.

 

Warranty Policy

From the day of purchasing Crypton & S4A products
(in formal purchase invoice date, hereinafter referred to as the purchasing date) ,

 

S4A offer you a free warranty
ACB series control board, UHF long-range card reader,
Within 2 years of quality guarantee.
 

RFID card reader, exit push button, magnetic lock, bolt lock, strike lock,
standalone access controller, access power supply... warranty period is 1 year,
 

There will be labor and parts cost charged if the warranty period is expired;
If the product needs to be renovated,
there will be labor cost and handling cost incurred

S4A INDUSTRIAL CO.,LIMITED

Founded in 2010, We have been dedicating in access control production R&D and sales for 10year till now.

With the belief that we do one thing well in a lifetime.

During the past 10 years, our products have been exported to various countries and regions.

And 90% of customers come from the recommendations of cooperative customers

And 80% of the turnover comes from cooperative customers in the past 10years.  

S4A ( Security for ALL )

S4A mainly produces a series of security Door Access Control as following:

Our enterprise mission is to make your residential home and office more secure.with our rapid development technology,

we are closing to this goal.during past 11 years.we cultivate a strong and energetic team for S4A' clients.

Quality is top priority

All products get through quality checking and being test 24 hours before delivery

Responsible teams

All sales are trained for 6 month before real contact with customers.And there are 3 shifts : 24 hours x7 online service.

Professional Support

we have 2 engineer team,1 team is responsible for re-sales inquiry,1 team is responsible for after-sales support.

 S4A's future would be even more brilliant, this is related to all of our staff's working sweat.

When you join this team, you will feel an invisible power to drive walk forward.

Our team can manufacture products, sell products, and do after-sales.  

We can create value for you! 

Join S4A, become our overseas partner. we could create brilliance together.