Gasboard-2063 is a high-performance NMP gas leak alarm developed independently by Sifang Optoelectronics based on the non dispersive infrared principle (NDIR). Suitable for detecting the concentration of central gas in drying equipment and exhaust pipes, the sampling instrument body and display part adopt an integrated explosion-proof structure design, which is convenient for installation and disassembly. At the same time, the instrument has the characteristics of automatic calibration, long-term maintenance free and long service life. It has industrial 4-20mA current output, RS485 external communication and concentration limit alarm output functions, and can be applied to complex and harsh high-temperature industrial environments.