DA-750 is your vigilant protector against the peril of toxic and combustible gas leaks in industrial settings. With its built-in micro pump ensuring continuous gas sampling, it's an ideal choice for closed areas. This cutting-edge device effortlessly converts digital signals into a 4-20mA standard current output, connecting seamlessly with PLCs, DDCs, recorders, and more to create a comprehensive gas monitoring system. DA-750 offers RS-485 communication and gas leak alarm signals through relay contacts, bolstering your safety. With DC 4-20mA standard output, it achieves long-distance signal transmission up to 2.5km, while RS-485 communication covers distances up to 1km. Stay secure with DA-750.