Inficon D-TEK 3 refrigerant leak detector — gray handheld, quick-charge battery & high sensitivity

The Inficon D-TEK 3 is a handheld refrigerant leak detector that delivers fast, accurate detection across CFCs, HCFCs, HFCs, HFOs and blends with user-changeable sensors and a long-lasting quick-charge battery.

Built as the next step in the trusted D-TEK lineup, the D-TEK 3 combines proven sensitivity with modern ergonomics and serviceability to speed up refrigerant leak finding in refrigeration, air conditioning, and heat pump systems. Its selectable sensitivity levels, automatic/manual zeroing modes, and rugged carrying case make it ready for fieldwork. The optional CO2 sensor accessory extends the tool’s usefulness for additional diagnostics so technicians can carry fewer instruments.

How does the D-TEK 3 speed up leak detection on busy jobs?

The D-TEK 3 is engineered to cut time spent locating leaks through fast warm-up, selectable sensitivity, and an easy-change sensor. Quick charge lithium-ion power and clear audible/visual indicators let you move quickly between inspection points without long downtime.

• Fast warm-up and immediate response for rapid inspections
• Low, Medium, High, and Super sensitivity settings to match leak size
• Quick-charge lithium-ion battery reduces interruptions on site
• Rugged carrying case keeps the tool and accessories organized

What refrigerants and blends will it detect reliably?

The detector is compatible with a wide range of refrigerants, including legacy CFCs and HCFCs as well as modern HFCs, HFOs and A2L blends. This broad detection capability helps ensure one instrument works across different systems and refrigerant transitions.

• Detects all CFCs, HCFCs and HFCs
• Detects newer HFOs and common refrigerant blends, including A2Ls
• Suitable for use on mixed-chemistry systems during service or troubleshooting

What maintenance and features keep it dependable in the field?

Maintenance was simplified with a user-changeable sensor and automatic/manual zeroing to compensate for background contamination. The durable design and included carrying case protect components during transport and storage, while battery and sensor accessibility reduce downtime.

• Easy-to-replace sensor for minimal service time
• Automatic and manual zero modes to reset baseline quickly
• Ergonomic housing for comfortable extended use
• Rugged carrying case included for jobsite protection

Can the D-TEK 3 replace multiple tools in my toolbox?

The D-TEK 3 covers a wide refrigerant range and offers an optional CO2 sensor accessory, allowing it to perform multiple diagnostic roles. This versatility reduces the number of separate instruments needed for HVAC/R technicians and field service teams.

• Optional CO2 sensor converts the unit for two-in-one functionality
• Multiple sensitivity levels suit both small pinhole leaks and larger failures
• Portable and rugged — easy to carry between job sites

Who is this for: The Inficon D-TEK 3 is aimed at HVAC/R technicians, refrigeration service professionals, and facilities maintenance teams who need a dependable, versatile leak detector that handles current and legacy refrigerants. It’s especially useful for professionals who value fast setup, low downtime, and the ability to adapt the tool with accessories like the CO2 sensor to cover more diagnostic tasks.