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