Explosion Proof Type Sampling Flammable Gas Detector Model : GTD-5100F Gas : Flammable Comm. : 4-20mA, RS-485, Relay, PoE App. : KCs, CE Explosion Proof Type Sampling Flammable Gas Detector Model : GTD-5000F Gas : Flammable Comm. : 4-20mA, RS-485, Relay App. : KCs, ATEX, IECEx, NEPSI, CE, KFI, KC, CPA Intelligent Flammable Gas Detector Model : GTD-3000Ex Gas : Flammable Comm. : 4-20mA, RS-485, Relay App. : KCs, NEPSI, CE , KC, CPA Smart Diffusion Flammable Gas Detector Model : GTD-2000Ex Gas : Flammable(CH4, H2, LNG, LPG) Comm. : 4-20mA, HART App. : KCs, ATEX, IECEx, NEPSI, UL, CE, KC, MED, KR, ABS, BV, DNV, HART, SIL2, PESO, TRCU ex , CPA Transmitter Diffusion Flammable Gas Detector Model : GTD-1000Ex Gas : Flammable(CH4, H2, LNG, LPG) Comm. : 4-20mA App. : KCs, KFI, CE Sampling Flammable Gas Detector Model : GTD-5000 Gas : Flammable Comm : 4-20mA, RS-485, Relay, PoE App : CE, CAP Gas Receiver Combination Flammable Gas Detector SPECIFICATION Model : GTD-6000 Gas : Flammable(CH4, H2, LNG, LPG) Comm. : 4-20mA, RS-485, Relay App. : CE