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Low Differential Pressure Transmitter & Controller – Compact, Accurate &Low Cost

Low Differential Pressure Transmitter & Controller – Compact, Accurate &Low Cost

SKU: LFM108
$189.00Price

Versatile low-pressure sensor and controller designed for airflow, vacuum, and cleanroom applications. Ideal for HVAC, lab environments, fume hoods, and energy management systems.

  • Product Description

    This low differential pressure transmitter and controller from LEFOO delivers precise, stable performance in low-pressure monitoring environments. Built for HVAC systems, cleanrooms, lab hoods, and air-handling equipment, it’s ideal for measuring vacuum, gauge, and differential air pressure in non-corrosive gas systems.

    Compact, economical, and easy to integrate, the transmitter supports various pressure ranges and offers reliable output for use in fan control, duct static pressure regulation, filter monitoring, and airflow control systems. It’s also highly effective in environmental and energy management applications, such as isolation room monitoring, oven pressurization, and pneumatic feed lines.

    Whether you're controlling ventilation in a VAV system or monitoring pressure changes in a laboratory or fume hood, this transmitter offers long-term accuracy and dependable signal transmission—making it a reliable solution for both industrial and commercial use.

    Key Features:

    • Accurate low differential pressure sensing for air and non-corrosive gases

    • Ideal for HVAC, cleanroom, fume hood, and lab pressure monitoring

    • Compact, lightweight, and cost-effective for system integration

    • Supports applications such as duct static pressure, airflow control, and smoke hood systems

    • Reliable in energy management systems and pneumatic environments

    • Suitable for monitoring gauge, vacuum, and differential pressures

  • Specifications

    Air Differential Pressure Transmitter
    Note:  Better accuracy performance than ±1%F.S  is optional
     
    General Value
    Pressure Range 0~±100Pa, 0~±1,000Pa, 0~±10,000Pa
    Overpressure capacity 5KPa, 10KPa, 80KPa
    Accuracy ±1%F.S
    Operating temperature -20℃~70℃
    Response time 0.5s/1s/2s/4s
    Cable Connector Cable maximum   diameter Ø8mm
    Stability Typical value:0.1%F.S Maximum value:0.2%F.S
    Protection Level IP54
    Electrical connections Three-wired Four-wired Five-wired
    Output signal 4~20mA 0~5VDC/ 0~10VDC RS-485 RS485+ 0~10VDC
    Power supply 10~30 VDC 16~30 VDC 10~30VDC 16~30 VDC
    Power consumption ≤1.5W
    Pressure interface Metal barbed interface,φ6.2mm
    Communication RS-485 Standard interface, Modbus RTU protocol
    Certification ROHS certification,CE certification
    Electromagnetic compatibility Electromagnetic radiation:EN50081-1/-2;Electromagnetic sensitivity:EN50082-2
    Lightning protection

    Air conduction withstand voltage 8000V, shell and cable conduction withstand voltage 4000V

     

  • Selection Guide

    Selection instructions
    Note: This Model has the ideal price-performance rate
     

    Code and description

    Remark

    LFM108 Low Differential Pressure Transducer

    Model

     

    101D

    101D=0±100Pa

    101G

    101G=0-100Pa

    Measuring range

     

    G means one-way

     

    D means two-way

     

     

    102D

    102D=0±1000Pa

    102G

    102G=0-1000Pa

     

    251D

    251D=0±250Pa

    103G

    103G=0-10000Pa

     

    252D

    252D=0±2500Pa

    251G

    251G=0-250Pa

     

    051D

    051DD=0±50Pa

    252G

    252G=0-2500Pa

     

    501D

    501D=0±500Pa

    501G

    501G=0-500Pa

     

    502D

    502D=0±5000Pa

    502G

    502G=0-5000Pa

     

    103D

    103D=0±10000Pa

       

    AL

    4~20mA

    Output type

       

    VL

    0~10V

       

    VZ

    0~5V

       

    MOD

    RS485

       

    MVL

    RS485、0~10VDC

       

    MVZ

    RS485、0~5VDC

       

    MAL

    RS485、4~20mA

    LFM108

    102G

    VZ

    Selection example
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