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HPM311 Micro Clean Air Wind Pressure Differential Pressure Transmitter

Measuring range: -100kPa…0~200Pa…100kPa
Overload: 3x of full range scale
Display option: LED or LCD
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The HPM311 Air Differential Pressure Transmitter features a CNC integrated aluminum alloy housing. It utilizes a highly accurate and stable sensor to convert the pressure signal of the measured medium into a 4-20mADC or standard voltage signal through a reliable expanded electrical circuit. Equipped with a field display and operational configuration capabilities, this transmitter allows for adjustable range settings and PV resets. With a top-notch sensor, advanced packaging technology, and precise assembly procedures, this product ensures exceptional quality and performance.


  • Measure differential pressure of micro air
  • Field display and configuration operation
  • Hard and sealed aluminium alloy shell
  • Short-circuit protection and reverse polarity protection
  • All range temperature compensation
  • Strong anti-jamming and long-term stability

Technical Parameters

Measuring Medium

Dry and clear noncorrosive gas(cannot measure liquids)


3x of full scale


±1.0%FS,±0.5%FS,±0.25%FS(subject to working pressure range)
Output Signal

4~20mA or Voltage

Power Supply24VDC

Working Temperature


Electrical ConnectionCable outlet

Our product philosophy is specialization, customization, and intelligence.

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    Phone : +86-13270442058
    E-mail : info@hjsensor.com
   Whatsapp : +86-13270442058
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