Shenzhen Lingbao Electronics Co,. Ltd. locates in Shenzhen China, established in 2002, is a professional manufacturer of fire and security alarm system products ,with more than 12 years experiences,especially in natural gas/LPG/coal gas detector ,the carbon monoxide detector,Compound detector, smoke alarms ,toxic gas detection system. Our products cover combustible gas detector,fixed gas alarm sensor,portable gas detector ,CO/carbon monoxide detector,multi gas detection Tools.