Barometric Pressure Sensors

Barometric Pressure Sensors

Key Features

  • Delivers ±0.5 hPa absolute accuracy, perfect for  altitude tracking and precision weather monitoring applications
  • Provide 0.01 hPa resolution, capable of detecting minute pressure variances for advanced navigation and altimetry
  • Cover 300–1100 hPa, supporting reliable performance from sea level to extreme high-altitude mountain environments
  • Integrated temperature sensing with active compensation ensures consistent, low-drift data across fluctuating thermal operating environments
  • Designed for IoT efficiency, consuming under 3 µA in low-power mode for extended battery-operated deployments
  • Supports standard I2C and SPI protocols with 1.8–3.6V logic for easy integration into MCU systems
  •  Compact 2.0 × 2.0 mm LGA package saves critical PCB space for space-constrained, portable hardware designs
  • Features conversion times under 10 ms, enabling high-speed data acquisition for real-time flight and motion monitoring
  • Rated for reliable operation in extreme industrial conditions ranging from -40°C to +85°C outdoor environments
  • Fully customizable calibration profiles ensure precise output formats to meet specific OEM and industrial project requirements

Barometric Pressure Sensor (BARO) – OEM Quality Replacement for Automotive & Diesel Engines

Product Overview

Looking for a reliable Barometric Pressure (BARO) sensor replacement? A faulty BARO sensor is the most common cause of P2227, P2228, and P2229 fault codes. Our high-precision atmospheric pressure sensor is engineered to restore your vehicle’s altitude compensation, ensuring optimal air-fuel ratio (AFR) calculations for both light-duty gasoline vehicles and heavy-duty diesel rigs. By providing the ECU with accurate ambient air density data, our sensor prevents sluggish acceleration, rough idling, and poor fuel economy caused by inaccurate altitude sensing.

Why Choose Our BARO Sensor?

Whether you are a fleet manager or a DIY mechanic, our sensors offer the durability and accuracy required for modern engine management:

  • Fix P2227 / P2228 / P2229 Codes: Designed specifically to resolve common BARO circuit range/performance issues.

  • OEM-Matched Performance: Precision-calibrated to match factory output curves for Cummins, Ford, GM, and Detroit Diesel applications.

  • Altitude Compensation: Prevents over-fueling and “black smoke” (in diesel engines) by accurately adjusting for high-altitude air density.

  • Enhanced Reliability: Sealed PBT plastic housing and corrosion-resistant brass terminals ensure long-term performance under extreme heat and vibration.

  • True Plug-and-Play: A direct replacement that requires no ECU re-flashing or complex wiring modifications.

Barometric Pressure Sensor Specifications

ParameterTechnical Details
Product CategoryBarometric Pressure (BARO/BAP) Sensor
Sensor TechnologyMEMS Piezo-Resistive / Integrated ASIC
Compatible Engine TypesGasoline (Turbo/NA) & Heavy-Duty Diesel (Cummins/CAT/Detroit)
Output Range0.5V – 4.5V (Ratiometric Analog)
Atmospheric Range300 – 1100 hPa (Standard Automotive Specification)
Installation LocationAir Filter Housing, Firewall, or Air Ducting
Operating Temperature-40°C to +125°C

Compatible Vehicle Applications (Fitment Guide)

We provide direct replacements for top manufacturers. Always verify your OEM part number before ordering.

  • Heavy-Duty Diesel: Cummins ISX/X15, ISB, Detroit DD13/DD15, Caterpillar C15/C13.

  • Light-Duty & Passenger:

       -GM/Chevrolet: Silverado 1500 (2014-2018), Cruze, Equinox

       -Ford: F-150 EcoBoost (2011-2014), Focus

       -Cadillac: ATS/CTS (2.0L Turbo)

Replaces OEM part numbers: 4921681, 16212460, 213-796, BL3Z-9F479-A, 161-1705, A0041539828.

FAQ

1. How do I know if my BARO sensor is bad?
Common symptoms include a Check Engine Light (P2227-P2229), significant power loss at high altitude, black smoke (for diesel engines), and erratic fuel trim readings.

2. Where is the BARO sensor located?
Unlike the MAP sensor (located inside the intake), the BARO sensor is usually found in an “open-air” location like the air intake duct, near the radiator support, or mounted to the firewall.

3. Do I need to reprogram my computer?
A: For most light-duty vehicles, it is Plug-and-Play. For heavy-duty commercial trucks, simply clear the active DTCs with an OBD-II scanner to reset the ECU’s adaptive learning.

Related Products:

Board Mount Pressure Sensor
TPMS Sensor
MAP Sensor
Barometric Pressure Sensor
Fuel Tank Pressure Sensor
Differential Pressure Sensor
Pressure Transmitter
Boost Pressure Sensor
Fuel Rail Pressure Sensor
Crankcase Pressure Sensor
Thin Film Pressure Sensor

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Strict Production Process

Product Design

Engineers develop optimized electronic circuits and structural designs based on real application needs.

Premium Component Sourcing

High-quality components and materials are carefully selected from trusted suppliers to ensure long-term reliability.

Advanced PCB Manufacturing

Automated SMT and precision soldering technologies are used to build stable and high-performance circuit boards.

Precision Assembly

Sensor elements or connector terminals are assembled with the PCB and housing to ensure accurate operation and strong mechanical stability.

Calibration & Performance Testing

Each product undergoes strict calibration and functional testing to guarantee accuracy and stable performance.

Final Quality Inspection & Packaging

Every unit is carefully inspected, labeled, and securely packaged to ensure it arrives safely and performs reliably for your applications.

Strict Production Process of Yafeite