D-TEK® CO2 Refrigerant Leak Detector

Provides Consistent, Accurate Responses to Next Generation Refrigerant

As the first accurate, reliable, highly sensitive, cordless refrigerant leak detector, the original D-TEK revolutionized the field. Now we have built on that technology leadership with the D-TEK CO2, the only hand-held refrigerant leak detector designed especially to detect carbon dioxide, the next generation refrigerant.

The D-TEK CO2 uses an innovative infrared absorption sensing cell which is extremely selective to carbon dioxide, yet its circuitry allows the instrument to equalize to the CO2 present in the atmosphere, so there is minimal risk of false alarms. D-TEK CO2 maintains its sensitivity over time for consistent, accurate and reliable performance. Its specialized infrared sensor cell lasts for approximately 1,000 hours, so you buy fewer replacement parts.

Additional features include a charging status indicator, sensor failure indication, sensor test mode and rechargeable NiMH (nickel metal hydride) batteries.


  • Low risk of false alarms because it equalizes to the CO2 present in the air
  • 1,000-hour infrared cell life for low cost of ownership
  • Consistent and accurate response because the infrared cell does not weaken over time
  • Quick response and quick clearing (“zeroing”) from high-efficiency air sampling pump
  • NiMH battery won’t corrode and provides greater charging capacity


  • Will not react to smoke, humidity, airflow or temperature changes
  • On-board diagnostics indicate charging status and warn of low battery or infrared cell failure
  • Made in the USA
  • Two year replacement warranty


Type D-TEK CO2
Base unit includes Infrared cell, NiMH batteries, spare filters, wall charger, 12 V car charger, hard plastic carrying case
Operating Temperature -20 to 50 °C (-4 to 122 °F)
Minimum sensitivity to CO2 (R744) 5 g/a
Controls Power on/off, Sensitivity high/low, Manual zero
Power Source NiMH batteries (rechargeable), AC adapter
Battery Life 6.5 hours
Charging options AC adapter with 6 foot cord, 12V adapter with cigarette lighter plug
Weight with batteries 1.19 lb (0.54 kg)
Probe length 15 in. (38 cm)
Certifications CE Marketing Power Safety and EMC

Part Number

Part Number Description
716-202-G1 D-TEK CO2, 115V US Adapter, English manual
716-202-G4 D-TEK CO2, 100V Japanese adapter, Japanese manual
716-202-G5 D-TEK CO2, 230V UK adapter, English manual
716-202-G7 D-TEK CO2, 115V US adapter, Spanish manual
716-202-G11 D-TEK CO2, 230V Euro adapter, EN/DE/IT/ES/FR Manual


Part Number Description
712-700-G1 Spare Power Stick (batteries)
712-707-G1 Filter cartridges, set of 5
716-701-G1 IR Cell for CO2 (sensor)
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