Profile: Rinch Industrial Co., Limited specializes in the manufacture of measurement meters and testing instruments. Our products include air quality monitor, anemometer, coating thickness gauge, data logger, dew point meter, digital thermometer, dissolved oxygen meter, halogen leak detector, infrared thermometer and monitoring instrument for locomotive turbocharger. Our F2000IAQ-VOC air quality monitor is specially designed to detect indoor air quality in offices and home environments. It is sensitive to carbon monoxide, alcohol, natural gas and smell from people's body. It can be used as a controller in ventilation and AC system. Coating thickness meters are used for measuring thickness and corrosion of pressure vessels, chemical equipment, boilers & oil storage tanks in industries such as petroleum, shipbuilding, power station & machine manufacturing. HLD-200 halogen leak detector is a newly high performance intelligent halogen leak detector. The new shell designed with LED displaying is elegant, easily-carried, easy in operation, and has visual and clear display. It provides 6 levels of sensitivity to set the real-time cycle adjustment. The high effective true mechanical pumping provides positive airflow through sensing tip, which can improve the sensitivity and response speed. It detects all kinds of halogenated refrigerants.