Door intercom systems beyond your expectation! 
Powerful Door intercom systems! Great Door Entry intercom systems and Telephone intercom systems with entry access control and optional video surveillance. We manufacture and offer to contractors and the public as well a whole variety of Door entry systems for homes and apartment buildings  since 1997. Prices like nowhere else! Quantometrix, Inc. is based in Worcester, MA - USA. Ph: 508-752-8550 - Fax: 508-752-8581. Thanks for visiting this site and our main corporate site for the full line of products!
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