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TPI Test Product International is the manufacturer of high quality Handheld Test and Measurement Equipment. Their catalog includes: Combustion Efficiency Analyzers, Condition Based Monitoring, Clamp-on Meters (Current), Multimeters (DMMs), Manometers (Pressure), Indoor Air Quality (IAQ), Carbon Monoxide Detectors, Combustible Gas Detectors, Contact Temperature Testers, Non-Contact Temperature Testers, Refrigerant Leak Detectors, Oscilloscopes (Handheld), Specialty Testers, Flexflair Leak Proof Flare Fittings, Test Leads and Accessories.