Ace Instruments Differential Pressure Indicator

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Product Description

Ace Instruments' AI-DDPG/DP-1-1 differential pressure instrumentation range is designed for precise and reliable measurement of differential pressure in laminar air flow cabinets, clean rooms, biosafety cabinets, and air handling units. These digital readout gauges serve as an advanced replacement for analog Magnehelic gauges and are equipped with a clear 4 digit LED display for easy readings.

Both the DDPG and DP1-1 models feature a built-in sensor and a buzzer alarm with an acknowledgement facility to alert users of any process violation. Other key features include unit conversion between mm.W.C. and Pascals, offset provision to meet audit requirements, analog 4-20mA output, and 30 mm depth for easy installation on clean room modular walls. The gauges are also equipped with RS 485 Modbus communication for seamless integration with BMS/SCADA/PLC systems.

Ace Instruments' cleanroom solutions are in compliance with global quality standards, including CE and ISO 9001:2015


The differential pressure range is widely used in various applications including clean rooms, laminar flow hoods, pharmaceutical manufacturing, laboratories, biosafety cabinets, HVAC systems, and hospitals. The range helps ensure proper airflow, prevent contamination, and maintain a safe environment by accurately measuring differential pressure.


  • Convenient unit conversion between mm.W.C. and Pascals
  • Clear 4 digit LED display readout for easy readings
  • Seamless connectivity to BMS/SCADA/PLC via RS-485 Modbus communication
  • Built-in integrated high-speed differential pressure sensor for accurate measurements
  • Buzzer alarm with an acknowledgement facility to alert users of process violation



Pressure Measuring Range

-10.0 to +10.0 mm.W.C.
-25.0 to +25.0 mm.W.C.
-50.0 to +50.0 mm.W.C.
0.0 to +100.0 mm.W.C.
-100 to +100 Pascals
-250 to +250 Pascals
0 to 10, 25, 50, 100, 200, 300, 500, 1000 Pascals (Any other range factory set as per customer specifications)

Accuracy: +/- 0.5% Of Full Scale


Integrated 4 Digit Red LED 7 Segment Display 0.8”


Integrated high-speed differential pressure sensor


Built In Buzzer Alarm For Process Violation Alert


Isolated RS-485 Modbus Protocol

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