GT903

Electrochemical | uses the redox reaction of gas at the electrode surface to generate current, The current is proportional to the gas concentration 。 Solid-state electrochemical | Gas molecules undergo redox reactions on the sensor electrode surface, Ions migrate through the solid electrolyte, generating an electrical signal 。 infrared | Gas absorbs infrared light at a specific wavelength, Concentration is calculated by measuring light intensity attenuation 。 Laser | Gas absorbs laser of specific wavelength, Scan absorption lines by tuning laser wavelength, Measure light intensity attenuation, Calculate gas concentration 。 Catalytic | Combustible gas burns on the catalyst surface, causing resistance change 。 Semiconductor | Gas adsorbs on the semiconductor surface and changes its resistance value 。 PID | UV ionizes gas molecules, Detect ion current 。 Thermal conductivity | Compares thermal conductivity of sample and reference gas 。 Ultraviolet | Selective ultraviolet absorption or fluorescence of gas molecules, Concentration measurement 。

Standard /Pump suction type

Pump suction type: 带泵, 主要检测狭窄密闭空间的Gas Concentration 。 GT903In petroleum Chemical industry, 煤矿, Metallurgy, Municipal 工程等众多领域有着广泛的Application, 无论是保障生产安全, 还是进行环境检测, Precise and reliable measurement 。 GT903widely used in petroleum, Chemical industry, Fire fighting, gas, Marine, health and epidemic prevention, Environmental monitoring, municipal utilities, energy and power, metallurgy and casting, wood processing, grain storage, tobacco fumigation, industrial spraying, sewage treatment, scientific research, emergency rescue monitoring and other fields 。