Inficon TEK‑Mate Refrigerant Leak Detector 705-202-G1 — Heated‑diode, 0.25 oz/yr Sensitivity, A2L Compatible

The Inficon TEK-Mate 705-202-G1 is a compact, heated-diode refrigerant leak detector built to find CFCs, HCFCs, HFCs and HFOs with 0.25 oz./year sensitivity.

Designed for HVAC/R technicians who need an affordable, dependable instrument, the TEK-Mate combines a proven heated-diode sensor with a user-friendly interface and automatic background zeroing. It’s battery-powered and portable, offering reliable performance on service calls without complicated setup. The unit is A2L certified, tolerant of common foaming agents, and comes with a rugged carrying case and U.S.-based support.

How sensitive is the TEK-Mate and which gases will it detect?

The detector achieves a sensitivity of 0.25 ounces per year (about 7 grams/year), letting technicians locate very small leaks before they cause system performance issues. Its heated-diode sensor is engineered for consistent response across a broad range of refrigerants.

• Sensitivity: 0.25 oz./year (7 g/year)
• Detects CFCs, HCFCs, HFCs and HFOs
• A2L compatible for low-GWP refrigerants
• Heated-diode technology for stable detection

What makes its operation simple on a service call?

The TEK-Mate is designed for straightforward, fast use: insert two D-cell batteries, zero the unit to eliminate background readings, and sweep the probe around fittings and joints. Audible and visual indicators help you interpret results quickly while the detector resists false alarms from soapy leak-check solutions.

• Automatic background adjustment (zeroing)
• Clear audible and visual leak indication
• No false positives from soap solutions
• Runs on two standard D-cell alkaline batteries

How rugged and serviceable is the TEK-Mate in the field?

Built with fieldwork in mind, the detector ships with a protective carrying case and uses a disposable heated-diode sensor rated for approximately 100 hours of life. When used responsibly, the unit endures routine handling and travel between job sites, and Inficon offers U.S.-based technician support for questions and parts.

• Sensor life roughly 100 operational hours
• Rugged carrying case included for transport
• Made in the United States with local support
• Durable construction suitable for service trucks

How does the TEK-Mate compare to more expensive detectors?

The TEK-Mate prioritizes dependable detection and ease of use over advanced diagnostics, making it a practical choice when sensitivity and reliability are needed without a high price tag. It performs core leak-finding tasks effectively and reliably, though more advanced models may offer extended sensor life or additional refrigerant identification features.

• Cost-effective choice for routine leak detection
• High sensitivity without complex menus or calibration
• Ideal for rapid sweeps and pinpointing small leaks
• Simpler maintenance vs. lab-grade alternatives

Who is this for? The Inficon TEK-Mate 705-202-G1 is tailored to HVAC/R technicians, service contractors, and maintenance teams who need a reliable, portable leak detector for everyday diagnostics. It’s especially suitable for pros who value a balance of sensitivity, ease of use, and affordability—those who perform frequent on-site leak checks, work with a variety of refrigerant types including A2L blends, and require straightforward U.S. technician support.