INFICON INF-721-204-G1 D-TEK 3 CO₂ Refrigerant Leak Detector

SKU: INF-721-204-G1
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Description

The INFICON INF-721-204-G1 is a high-performance refrigerant and CO₂ leak detector from the D-TEK 3 line, supplied with an integrated CO₂ infrared sensor. Designed for HVACR professionals and refrigeration technicians, it helps detect leaks in CO₂ systems, carbonated beverage lines, cold rooms, and refrigeration circuits that use R-744. The tool features a field-replaceable sensor and battery, ergonomic design, and strong sensitivity to help pinpoint leaks quickly and reliably.

FEATURES:

  • Equipped with CO₂ sensor built in, tailored for detecting leaks of R-744 (carbon dioxide) systems.
  • Infrared sensing technology: offers stable, non-degrading sensitivity over time.
  • Field-replaceable sensor and battery to minimize downtime on the job.
  • Fast warm-up (45 to 90 seconds) so you’re ready quickly.
  • Four sensitivity levels (Low / Medium / High / “Super”) for adapting to different leak sizes and environments.
  • Manual & automatic zero modes for cancelling ambient background gas and improving detection accuracy.
  • Capable of detecting other refrigerants as well (when using sensor modules) — the D-TEK 3 line allows sensor interchangeability.
  • Rugged design with durable housing and a user-friendly interface tailored for field use.
  • Rechargeable lithium-ion battery with ~10 hours of runtime; supports operation while charging via micro-USB.
  • Certifications: EN14624:2020, A2L certified, CE, UKCA

INCLUDES:

INFICON D-TEK 3 CO₂ leak detector (model 721-204-G1), Infrared CO₂ sensor (pre-installed) , Lithium-ion rechargeable batter, Spare filters, AC wall charger (USB), Carrying / storage case, 2-year warranty

SPECIFICATIONS:

Parameter Value / Range
Model INF-721-204-G1 (D-TEK 3, CO₂ sensor)
Sensor Type Infrared CO₂ sensor (R-744)
Probe Length ~17 in (43 cm) standard probe
Sensitivity (CO₂ / R-744) 0.07 oz/yr (≈ 2 g/year)
Warm-Up Time 45 to 90 seconds
Operating Temperature –4 to 122 °F (–20 to +50 °C)
Storage Temperature –4 to 140 °F (–20 to +60 °C)
Charging Temperature 32 to 113 °F (0 to 45 °C)
Battery Rechargeable lithium-ion
Battery Life ~10 hours operation
Charging Interface Micro USB (can operate while charging)
Certifications / Standards EN14624:2020, A2L certified, CE, UKCA
Weight 440 g (0.97 lb)
Warranty 2-year
Huddleston Australia