TPI

TPI (Test Products International)

TPI, or Test Products International, is a manufacturer of portable, handheld test and measurement instruments focused on HVAC/R service, industrial maintenance, and field diagnostics. TPI produces a comprehensive range of instruments including digital clamp meters, multimeters, combustion analyzers, vibration analyzers, and gas detectors designed for reliable performance under field service conditions. The brand is recognized for providing capable, value-oriented instruments suited to HVAC technicians, maintenance engineers, and industrial service personnel.

TPI combustion analyzers are widely used to measure flue gas composition, combustion efficiency, and emissions from boilers, furnaces, and burners, enabling technicians to optimize heating system performance and verify compliance with emissions standards. Their vibration analyzers support predictive maintenance programs by detecting early signs of mechanical wear in rotating machinery.

Key Product Lines

• Digital clamp meters and multimeters for electrical measurement in HVAC and industrial maintenance applications
• Combustion analyzers for flue gas analysis, combustion efficiency testing, and emissions compliance verification
• Vibration analyzers for predictive maintenance and rotating machinery condition monitoring
• Gas detectors and CO monitors for safety and indoor air quality assessment

Industries Served

TPI instruments are used by HVAC/R service technicians, facility maintenance engineers, industrial plant service personnel, and environmental inspectors in commercial buildings, industrial facilities, and residential service applications.