长园科技集团股份有限公司

Gas detectors are safety instruments used in industrial settings to detect flammable and toxic gases. They can be permanently installed in hazardous indoor or outdoor locations where gas leaks may occur. When the target gas or volatile liquid is present in the air, the detector generates a 4–20 mA current signal proportional to the gas concentration, along with an RS485 interface. These detectors are widely used in industries such as power, petrochemicals, power generation, smelting, coking, and urban gas supply. 

The digital temperature and humidity sensor features a standard RS-232 or RS-485 communication interface. The product employs a combination of recursive averaging digital software filtering and hardware circuit filtering to minimize external interference with sampling. It features high full-range accuracy, strong stability, good consistency, and fast response speed. Through standard RS-232 or RS-485 serial interfaces, it can be integrated with a computer to form a multi-point temperature and humidity measurement system. It can be widely applied in industrial sites, offices, supermarkets, archives, production workshops, warehouses, server rooms, construction sites, and other locations.