ADP Differential Pressure Transmitter

Precision Air Pressure Monitoring for HVAC, BMS, and Cleanroom Zones

The ADP Series is a high-accuracy differential pressure transmitter engineered for indoor environments where precise air pressure control is critical—such as hospitals, laboratories, cleanrooms, and negative pressure isolation zones.

Utilizing CMOSense thermal flow sensing technology, the ADP ensures ultra-stable, drift-free readings for both positive and negative pressure differentials in air ducts, controlled rooms, and between spaces requiring air pressure balancing.

Selectable measuring ranges from ±25 Pa to ±500 Pa, optional LCD display, and support for 4–20 mA, 0–10 V, and Modbus RTU (RS-485) outputs make the ADP ideal for both standalone monitoring and full integration into BMS, HVAC, and medical air systems.

Its compact IP54-rated aluminum housing and sub-5 ms response time make it perfectly suited for real-time control applications in healthcare, research, and commercial buildings.

Key Features

• Wall-mount differential pressure transmitter for air and non-aggressive gases
• Advanced CMOSense thermal flow sensing with zero offset drift
• Measuring ranges: ±25 Pa, ±125 Pa, ±500 Pa
• Optional 3-digit LCD display with custom range selection
• Output options: 4–20 mA, 0–10 V, RS-485 Modbus RTU
• High accuracy: ±0.1 Pa (zero), ±3% F.S. span
• Repeatability: ±0.5% F.S. | Offset stability: <0.1 Pa/year
• Rapid response: 4.6 ms typical
• Power supply: 12–36 V AC/DC, 50/60 Hz
• Cast aluminum housing | IP54 protection
• CE & FCC certified | Made in Taiwan

Applications

• Hospital rooms and negative pressure isolation wards
• Medical centers and surgical suites
• Cleanrooms and sterile processing environments
• Research laboratories and testing facilities
• Commercial buildings with pressure-regulated ventilation
• Smoking rooms with exhaust control systems
• Indoor environments requiring room-to-room pressure differentiation
• Building Management System (BMS) integration for healthcare and biotech facilities
  

Available Variants