ACM43

Hikvision's North American branch office has a tech support hotline staffed by employees based in California, as well as field sales engineers spread across the entire US. If you're purchasing Hikvision products from an authorized distributor, you're getting full tech support and warranty. http://www.hikvision.com/en/us/Press-Release-details.asp?id=2680 Retailers selling on eBay and Amazon are not authorized distributors, so be careful where you buy from. http://www.hikvision.com/En/us/download_more.asp?id=1445

So you're okay without a warranty. Are you also okay not having access to firmware upgrades? http://www.hikvision.com/en/us/Press-Release-details.asp?id=2680