A600V Intrinsic safety marine radio Ocean one Walkie Talkie Marine Walkie Talkie Intrinsically safe radio,Marine radio,Marine handheld radio II 2G Ex ib IIB T4 Gb Explosion levels EU ATEX intrinsically safe certification Passed CE, FCC, RoHS certification Float & IP68 waterproof rating Marine handheld radio VHF 156-163.425MHz A600V Intrinsic safety radio  complies with GB3836.1-2010 "Explosive environment Part 1: General requirements for equipment" and GB3836.4-2010 "Explosive environment Part 4: Intrinsically safe "i" protected equipment" standard, through ATEX II 2G Ex Ib IIB T4 is intrinsically safe and meets the requirements of explosion-proof environment. It is suitable for Zone 1 and Zone 2, T1-T4 explosive gas mixture sites containing IIA-IIB. IIA IIB IIC T1(450) Methane, toluene, methyl ester,Ethane, propane, acetone,Acrylic, benzene, styrene,Carbon monoxide, ethyl acetate,Acetic acid, chlorobenzene,methyl acetate,ammonia Propylene, propylene Clear, dimethyl ether, Hydrogen cyanide, City gas Hydrogen, water gas T2(300) Methanol, ethanol, ethylbenzene, Propyl alcohol, propylene, butanol,Butane, butyl acetate,Amyl acetate, cyclopentane Butadiene, ring Ethoxyethane, B Ene, furan Acetylene T3(200) Pentane, pentanol, hexane, Hexanol, heptane, octane, Ethanol, turpentine, Naphtha, petroleum (including steam Oil), fuel oil,Pentanol tetrachloromethane Dimethyl ether, propylene Aldehyde, hydrogen sulfide T4(135) Acetaldehyde, trimethylamine Dibutyl ether, two Ether, ethyl methyl, Tetrafluoroethylene Carbon disulfide T5(100) Ethyl nitrate T6(85) Ethyl nitrite A600V is a waterproof and Intrinsic safety radio.The A600V can be floated when fell into water and waterproof to IP68,can be more than 1 meter depth in water for 1 hour.