Our service - NO EXCUSE
All technical issues must be solved within 12 hours.
All emails must be replied within 2 hour at working time,
and it must be replied within 24 hours at 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 contact with 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 charge from local customs.

Warranty Policy

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

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

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

There will be labour and parts cost charged if the warranty period is expired;
If the product need to be renovated,
there will be labour cost and handling cost in cured

Why Choose S4A?
S4A obtained more than 9 years experience in
Door access control systems and solutions,
we did many project in local market,

if you need diagram or wiring, just email or call us back at anytime.
we will send relevant according to your request.

In shenzhen ,we have 2office, as :Crypton Electronic Co.Ltd
S4A Industrial Co.Limited

Also we have 1branch office in Doha-Qatar,
also selling door access control systems and provide technicial support.
if you need local installation, we are happy to serve you..