A. Not always. Before you make a purchase it is always a good idea to ensure the product is on the correct and approved frequency of 433MHz. Chuango products purchased direct from China will be on the 315MHz frequency which is not compatible with our approved products. In addition to this, Chuango products purchased from online stores overseas means that there will be no warranty on those items. Chuango only offers warranty on products purchased through an authorised distributor or reseller such as Security Alarm Services. Below is a link to the Chuango website that clearly states Chuango’s position on their product warranty conditions:
http://www.chuango.com/english/newsdet.asp?moduletype=2&channelid=2&id=86