The SM-ADP-34 air differential pressure transmitter utilizes a high-performance SMI silicon piezoresistive pressure chip as its sensing element and features an aluminum alloy housing. An internal dedicated integrated circuit converts the sensor's millivolt output into a standard current or voltage signal, enabling direct and convenient connection to computer interface cards, control instruments, smart instruments, variable frequency drives (VFDs), or PLCs. Characterized by its compact size and light weight, the SM-ADP-34 is widely used in process control applications within the power and coal industries, such as boiler air supply and underground ventilation systems.