TSI Alnor

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  • CO2 Range: 0 to 5000 ppm
  • Accuracy: ±3.0% of reading or ±50 ppm, whichever is greater
  • Dual-wavelength NDIR (non-dispersive infrared) sensor
  • Tracks average, maximum and minimum values
  • Sampling function records multiple point measurements.
  • Ergonomic, overmolded case design
  • NIST Certificate Included

The TSI Alnor IAQ-CALC 7515 meter is cost-effective meter for carbon dioxide (CO2) measurements. Offering accurate measurements in an ergonomic, handled design, the 7515 is an excellent choice for a wide range of functions such as verifying HVAC system performance and to ensure compliance with IAQ regulations and guidelines.

TSI Alnor IAQ-CALC 7515 meters utilize a low-drift NDIR CO2 sensor for stable readings that are accurate to ±3.0% or ±50 ppm (whichever is greater) over the entire 0 to 5,000 ppm range. Results are shown on a clear LCD display. The 7515 also tracks statistics such as average, maximum and minimum values and the sampling function records multiple point measurements.

The TSI Alnor model 7525 IAQ-CALC meter ships complete with meter and integral probe, hard carrying case, batteries, operation and service manual, and NIST calibration certificate.

TSI Alnor Gas Regulator
Gas regulator (0.3 lpm) for all gas calibration kits
TSI Alnor Calibration Collar
Provides closed area around gas probes for calibration
TSI Alnor Calibration Kits
Calibration kits for TSI Alnor IAQ meters
TSI Alnor Calibration Gases
Span calibration gases, zero calibration gases, as well as standard ppm concentrations are available for TSI Alnor meters


This product can be used in the following applications: