Shenzhen Zhanhui Industrial Ltd was founded in 1993. We have been making alarm sensors for nearly 20 years. Currently our major products are promotion gifts, smoke alarm, gas alarm sensor and family safety-securing system. And we have been growing gradually into one of the most important manufacturers in China and are enjoying more and more market shares for these items. We are proud and confident to supply more and better such items to the markets both at home and abroad.