... strong ionization discharg dampproof MC800 portable space the ozone detector Product details Features: * the small volume, light weight, waterproof, ... display to 50000 PPM, 100.00% Vol, 100% LEL* data recovery function, avoid misoperation cause trouble back at home* shell with ... Our company pays more attention to the quality of the product than the price. Customized design is welcomed. OEM&ODM ...