Event Surveillance

474 event surveillance products are offered for sale by suppliers on Alibaba.com, of which network camera accounts for 11%, surveillance systems accounts for 5%. A wide variety of event surveillance options are available to you, such as motion detection, two-way audio and waterproof / weatherproof.You can also choose from sd card, memory card and micro sd card event surveillance,as well as from ptz camera, dome camera, and solar camera event surveillance,and whether event surveillance is customized logo, or software reengineering.