...... vastly-e electronic technology co., ltd. (former name: sky-earth sensor co., ltd . ) is situated in a historic city - ningbo of zhejiang province by the beautiful east sea. .the land area of our factory is more than 10000 square meters and the building area is over 40000 square meters.. our company specializes in manufacturing and developing different kinds of industrial autocontrol sensors: inductive sensors, capacitive sensors, photoelectric sensors and other controllers. .all the products are mainly sold to european and american markets.