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TPI

TPI (Test Products International) is a manufacturer of test and measurement instruments and HVACR service equipment. The company was founded in 1990 and is headquartered in Beaverton, Oregon, with additional operations in the United Kingdom. TPI's product line includes digital multimeters, clamp meters, voltage detectors, carbon monoxide analyzers, combustion analyzers, vacuum gauges, and portable heaters. These products are used by technicians and engineers in HVACR, electrical, and industrial maintenance applications. TPI instruments are designed to meet relevant safety and performance standards, with many models carrying CAT III or CAT IV safety ratings for use in electrical environments. The product families cover a range of measurement capabilities: vacuum gauges measure from 186 micron Hg to 112,100 micron Hg with ±1% accuracy; CO analyzers detect carbon monoxide with ±5 ppm or 5% of reading accuracy; CO detectors monitor 0 to 69 ppm with ±3 ppm accuracy at 73°F ±10°F. TPI also produces portable electric heaters for jobsite and garage use, such as the 188-TASA model, which outputs 1.3 kW or 1.5 kW on 120V AC single-phase power and includes a NEMA 5-15P plug, automatic reset thermal overheat protection, and a safety screen. Replacement parts for HVACR systems include element assemblies, end caps, transformers, and contactors, identified by manufacturer part numbers such as 64001021, 4900200, 60719024, and 58027056. These components are used in forced-air heaters, unit heaters, duct heaters, commercial refrigeration, air conditioning, and heating systems to restore or maintain operation. 3G Electric supplies TPI products globally, serving plant engineers, maintenance managers, and procurement specialists who require documented specifications and consistent availability. The catalog includes TPI test instruments, heaters, and replacement components, with product data such as measurement range, accuracy, voltage, phase, plug type, and part numbers provided for verification against system requirements. 3G Electric supports the TPI line by stocking items across these categories and providing access to technical specifications for selection and procurement.

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About TPI

TPI (Test Products International) is a manufacturer of test and measurement instruments and HVACR service equipment. The company was founded in 1990 and is headquartered in Beaverton, Oregon, with additional operations in the United Kingdom. TPI's product line includes digital multimeters, clamp meters, voltage detectors, carbon monoxide analyzers, combustion analyzers, vacuum gauges, and portable heaters. These products are used by technicians and engineers in HVACR, electrical, and industrial maintenance applications. TPI instruments are designed to meet relevant safety and performance standards, with many models carrying CAT III or CAT IV safety ratings for use in electrical environments. The product families cover a range of measurement capabilities: vacuum gauges measure from 186 micron Hg to 112,100 micron Hg with ±1% accuracy; CO analyzers detect carbon monoxide with ±5 ppm or 5% of reading accuracy; CO detectors monitor 0 to 69 ppm with ±3 ppm accuracy at 73°F ±10°F. TPI also produces portable electric heaters for jobsite and garage use, such as the 188-TASA model, which outputs 1.3 kW or 1.5 kW on 120V AC single-phase power and includes a NEMA 5-15P plug, automatic reset thermal overheat protection, and a safety screen. Replacement parts for HVACR systems include element assemblies, end caps, transformers, and contactors, identified by manufacturer part numbers such as 64001021, 4900200, 60719024, and 58027056. These components are used in forced-air heaters, unit heaters, duct heaters, commercial refrigeration, air conditioning, and heating systems to restore or maintain operation. 3G Electric supplies TPI products globally, serving plant engineers, maintenance managers, and procurement specialists who require documented specifications and consistent availability. The catalog includes TPI test instruments, heaters, and replacement components, with product data such as measurement range, accuracy, voltage, phase, plug type, and part numbers provided for verification against system requirements. 3G Electric supports the TPI line by stocking items across these categories and providing access to technical specifications for selection and procurement.

Common Applications

  • HVACR service — TPI 605BT wireless digital vacuum gauge for evacuation and vacuum verification on refrigeration systems
  • Jobsite heating — TPI 188-TASA portable electric heater for temporary warmth in garages and construction areas
  • Indoor air quality — TPI 777 carbon monoxide analyzer for spot-checking CO levels in occupied spaces
  • Residential safety — TPI 780 carbon monoxide detector for continuous monitoring in homes and small commercial rooms
  • HVACR repair — TPI element assembly 64001021 for restoring heat output in forced-air and unit heaters
  • Electrical maintenance — TPI contactor 58027056 for switching compressor and fan motor loads in HVACR systems

Frequently asked questions

Common questions about TPI from 3G Electric.

What is the measurement range and accuracy of the TPI 605BT wireless digital vacuum gauge?

The TPI 605BT measures vacuum from 186 micron Hg to 112,100 micron Hg with ±1% accuracy. It features Bluetooth connectivity for Android systems, a 1/4 in male fitting, and a 9V battery. The LCD display provides readings for HVACR evacuation and service work. This gauge is used to monitor vacuum levels during system evacuation and to verify that moisture and non-condensables have been removed. The Bluetooth link allows remote monitoring on compatible Android devices.

What are the power requirements and safety features of the TPI 188-TASA portable electric heater?

The TPI 188-TASA operates on 120V AC single-phase power and outputs 1.3 kW or 1.5 kW. It has a NEMA 5-15P plug, automatic reset thermal overheat protection, and includes a safety screen. This heater is intended for jobsite and garage use. The overheat protection resets automatically after the unit cools, and the safety screen prevents contact with the heating element. The plug type is compatible with standard 15A, 120V receptacles.

How accurate is the TPI 777 carbon monoxide analyzer?

The TPI 777 handheld CO analyzer has an accuracy of ±5 ppm or 5% of reading, whichever is greater. It features a digital LCD display, one-button operation, and a belt clip. It is powered by a battery and is used for indoor air quality checks and combustion analysis. The instrument provides direct readings of carbon monoxide concentration in ambient air. It is suitable for spot-checking and troubleshooting in HVACR and industrial settings.

What does the TPI 780 carbon monoxide detector measure and what are its power requirements?

The TPI 780 is a surface-mount CO detector with an electrochemical sensor. It detects carbon monoxide from 0 to 69 ppm with ±3 ppm accuracy at 73°F ±10°F. It is powered by a removable AAA battery with battery backup and includes a test button and two mounting screws. The detector is designed for continuous monitoring in enclosed spaces. The electrochemical sensor provides specificity to carbon monoxide. The test button allows functional verification.

What replacement parts does 3G Electric supply for TPI HVACR equipment?

3G Electric supplies TPI replacement parts including element assemblies (e.g., part number 64001021) for forced-air, unit, and duct heaters; end caps (e.g., 4900200) for HVACR bases and housings; transformers (e.g., 60719024) for stepping down voltage in control circuits; and contactors (e.g., 58027056) for switching compressors and fan motors. These components are used to restore heat output, protect internal components, and maintain electrical control functions in commercial and industrial HVACR systems.

Does 3G Electric supply TPI products?

Yes — 3G Electric (S) Pte. Ltd. supplies TPI products. We stock the TPI catalog and supply genuine factory-original products with full manufacturer warranty and technical support.