Starting at $2,695.00
Starting at $2,425.50

Not in stock. Usually ships in 3-5 business days [?]

Need Help? Call 1-800-884-4967
Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET


  • 4.3in color touch-screen display
  • Bluetooth wireless technology for live data streaming
  • Long-life O2 sensor (5-year warranty)
  • Optional NOx and SO2 sensors for emissions testing
  • Dilution mode protects sensors in harsh conditions
  • B-Smart sensors save downtime & calibration costs
  • Rugged all-in-one probe connection
  • Rechargeable Li-Ion batteries or line power options

What's in the Box

  • 12in probe
  • Carrying case

The Bacharach PCA400 portable combustion analyzer offers everything needed to commission, tune, maintain and certify any boiler. This unit can be configured to measure up to four gases by selecting from O2 (5 year sensor warranty), CO, NO, NO2 and SO2. NOx is calculated from the NO reading if NOx and SO2 are both required. Additional measurements include ambient, stack and differential temperatures, pressure and differential pressure, and flow.

With a 4.3-inch color touch display and Bluetooth functionality, users of the Bacharach PCA400 portable combustion analyzer can monitor and analyze data in a variety of ways. The PCA400's on-board memory can store up to 500 sets of records and can be organized in a folder structure for viewing and download at a later time. The Bluetooth technology allows users to stream data from this Bacharach combustion analyzer, in real-time, to any Bluetooth-enabled tablet or smartphones. This feature becomes most noticeable when tuning large equipment, as the technician does not need to be near the analyzer to view data. Reports can also be generated via the PCA400 including up to five data points, location and equipment information, your company information, logo and more.

Bacharach also offers its B-SMART sensor program which utilizes pre-calibrated sensors to eliminate the need for field calibration and allows users to add new sensor types to the PCA400 in the field. The B-SMART exchange program also allows for replacement sensors to be shipped to you at a pre-determined interval of your choice. Simply swap the new sensor in for the old and return the old sensor to Bacharach via the pre-labeled container. Because the sensors come pre-calibrated, there is no need for field calibration prior to use and your PCA400 can up and running in seconds.


Bacharach 0024-0881 Nitric Oxide sensor
Replacement Nitric Oxide sensor, NO for PCA3 Combustion Analyzer
Bacharach 0024-0997 Carbon Monoxide sensor (high range)
Replacement Carbon Monoxide sensor, CO (high) for PCA3 Combustion Analyzer
Bacharach 0024-0998 Sulfur Dioxide sensor
Replacement Sulfur Dioxide sensor, SO2 for PCA3 Combustion Analyzer
Bacharach 0024-1027 Nitrogen Dioxide sensor, NO2
Replacement Nitrogen Dioxide sensor, NO2 for PCA3 Combustion Analyzer
Bacharach 0024-1542 B-Smart CO Sensor
CO (high range) pre-calibrated sensor for PCA3 combustion analyzer
Bacharach 0024-1543 B-Smart SO2 Sensor
SO2 Pre-Calibrated Sensor for PCA3 Combustion Analyzer
Bacharach 0024-1544 B-Smart NO2 Sensor
NO2 Pre-Calibrated Sensor for PCA3 Combustion Analyzer


Please consider these optional accessories.

Bacharach Filter Elements
Replacement filter elements for water trap assemblies (pack of 3)
Bacharach Water Trap Assembly
Replacement water trap assembly for Bacharach combustion meters