TPI
TPI – Practical Precision Tools Designed for the Field
Precision that Understands Application
Test Products International (TPI), founded in 1997 in the USA, exemplifies this approach. Its tools serve professionals in HVAC/R, electrical, industrial, and environmental sectors—with a design philosophy rooted in precision, durability, and application-based engineering.
Rather than competing on specs, TPI engineers value-driven tools that strike a balance between performance and affordability. These instruments are reliable, straightforward to operate, and accessible to both field technicians and plant engineers.
Smart Product Lines that Address Core Measurement Needs
TPI offers a thoughtfully curated portfolio, focusing on practicality over excess. Key product groups include:
Gas Detectors and Leak Testers: These instruments ensure safety in HVAC and industrial environments, with high-sensitivity sensors for combustible and toxic gases.
Electrical Measurement Tools: From digital multimeters to clamp meters and non-contact voltage testers, TPI’s tools assist in diagnosing and maintaining electrical systems efficiently.
Temperature, Humidity,and Pressure Meters: Portable devices used in monitoring air conditions, HVAC testing, and industrial process control.
HVAC/R System Analyzers: Devices for refrigerant diagnostics, pressure readings, and energy efficiency testing—crucial for both setup and maintenance.
Thermal Imaging and Inspection Tools: Supporting visual diagnostics in hard-to-reach areas, and early detection of thermal, electrical, or mechanical issues.
Sound and Vibration Meters: Designed to assess noise levels and vibration in industrial settings, contributing to machine maintenance and environmental monitoring.
What unites all TPI products is their user-friendly interface, robustness, and suitability across skill levels—from beginner technicians to experienced engineers.
Built for the Real World
TPI’s development strategy emphasizes simplicity, stability, and integration. Instead of overcomplicating features, the company optimizes for durability and ease of use. That’s why its tools are widely used across job sites, factories, maintenance workshops, and field service environments.
Maintaining manufacturing operations in the USA also ensures consistent quality control and responsive support—two factors that matter in demanding work conditions.
Oscilloscope accessories
Portable Contact Thermometer
InfraRed Thermometer
Clamp Meter
K-Type Temperature Sensor
T-Type Temperature Sensor
Discontinued Products
Outside Micrometers
DIGITAL OUTSIDE MICROMETER
Pressure Sensors & Transmitters, Tranducers
Signal converter
Handheld Multimeter
Earth resistance/Resistivity Tester
Phase Indicator/Detector
Insulation Tester
Video Borescope
Radiation, Heat, Stress, Solar,
Tachometer
PH meter
Oil and Axid meter
Multi gas detector
Single gas detector
Hygro-Thermometer
Anemometer
Refrigerant gas detector, air conditioner
Manometers
Portable pressure Meter
Vacuum Pressure portable
Combustion/Emission Gas Analyzer
Vibration Meter, Accelerometer and Dynamic Balancing