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Yunyi has engaged in the research and development of pressure, liquid level, flow, and temperature sensors and transmitters, as well as their solutions. Providing OEM & ODM and custom design services

Wireless Differential Pressure Transmitter

Dual Pressure Simultaneous Measurement · Wireless Smart Transmission — Integrated Differential Pressure Flow and Level Monitoring Expert

YUNYI wireless differential pressure transmitter is a high-precision differential pressure measurement instrument based on industrial-grade wireless communication technology (LoRaWAN/NB-IoT/4G). It accurately calculates the pressure differential by simultaneously collecting pressure values from two measurement points and wirelessly transmits the data to the monitoring platform. Featuring an integrated battery-powered and wireless transmission design, the device eliminates industry pain points such as challenging wiring in hazardous areas and signal transmission difficulties for rotating equipment. It delivers a maintenance-free, intelligent solution for applications including flow calculation, liquid level monitoring, and filter status surveillance.

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Product Advantages
1. Dual-Point Pressure Synchronous Measurement: Simultaneously captures pressure values at both high-pressure and low-pressure ends to precisely calculate pressure differential, eliminating cumulative errors from traditional dual-transmitter configurations.
2. Wireless Intelligent Transmission: Utilizes 4G/NB-IoT/LoRa wireless transmission, eliminating wiring installation. Reduces installation costs by 70% and boosts deployment efficiency by 3x.
3. Ultra-Low Power Consumption Design: Intelligent power management with built-in high-capacity lithium battery supports 3-5 years of continuous operation, achieving true maintenance-free performance.
4. Intelligent diagnostics: Real-time monitoring of anomalies like pressure tube blockages or sensor failures provides early warnings to prevent production accidents.
5. Multi-parameter output: Simultaneously outputs differential pressure and two absolute pressure values, enabling derived calculations for flow rate, liquid level, and other process parameters.
6. Robust environmental adaptability: IP65 protection rating and corrosion-resistant materials ensure suitability for harsh industrial environments.

Core Application Areas
✅ Industrial Process Control: Pipeline flow measurement, filter differential pressure monitoring, pump set operational status monitoring
✅ Energy Management Systems: Heat exchanger pressure drop monitoring, ventilation system air pressure detection, cleanroom differential pressure monitoring
✅ Environmental Equipment Monitoring: Baghouse dust collector differential pressure monitoring, desulfurization tower pressure drop monitoring, water treatment system filtration monitoring
✅ HVAC Systems: Air handling unit differential pressure monitoring, fan operational status monitoring, damper control
✅ Equipment Health Management: Lubrication system monitoring, hydraulic system monitoring, rotating equipment condition monitoring

Technical Specifications

  1. Measuring range:-0.1~60MPa (pressure type)
  2. Temperature:-500-1200 degrees (temperature type)
  3. Accuracy level:0.2%FS,0.5%FS,1%FS
  4. Transmission distance: The town can reach 2-5 Km
  5. Operating frequency: ISM band includes 433, 868, 915MH, etc
  6. Standard: lEEE 802.15.49
  7. Capacity: A LoRa gateway can connect thousands of LoRa nodes
  8. Operating temperature:-10~60口
  9. Ambient humidity: <80%RH
  10. Thread interface: M20*1.5 (ordering instructions for other threads)
  11. Temperature compensation range: 4 points temperaturecompensation according to customer requirements(temperature compensation)
  12. Communication current: Average communication current100mA@3.6VDC
  13. Duty current: 20uA@3.6VDC
  14. Antenna interface: SMA antenna interface
  15. Measuring medium: suitable for testing the pressure of gas,liquid and other non-corrosive media)

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