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Tek-Mate Leak Detector

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Product Details
Brand: JAVAC

Offering hand-held convenience, the Tek-Mate leak detector boasts proven heated diode sensor technology. The Tek-Mate incorporates an electrochemical sensor consisting of a ceramic substrate, doped with a reactive element, and maintained at high temperature by a built-in heating element.

When a halogen-bearing gas contacts with the hot surface, the chlorine, fluorine or bromine atoms are separated from the molecule and ionized. This causes an electrical current to flow within the ceramic to a collection electrode at the center. Careful selection and application of the ceramic permits the Tek-Mate sensor to provide similar responses to CFCs (such as R11 and R12), HCFCs (such as R22 and R123), HFCs (such as R134a) as well as replacement blends (such as R404a and R410a) so that the operator does not need to determine the refrigerant in use, or remember to set a selector switch.

Tek-Mate is sensitive to R22 at 2 grams/year and R410A at 5 grams/yr, making it easy to detect a leak of any size.

The latest version of the Tek-Mate features a soft touch operational pad, allowing the user to control the unit with only one hand. Switching the unit on or off and selecting detection levels (high / low) is done with a quick press of a button.


  • Detects R22, R134a, R404a, R410a, R448a, R507 (AZ-50), R32, HFO1234yf, and all other CFCs, HCFCs, HFCs, and HFOs
  • Runs on 2 "D" cell batteries
  • No need for adjustments since the automatic background compensation feature continuously monitors and compensates for changing background "noise."


  • Heated diode sensor
  • Two year replacement warranty
  • Made in the USA


  • Suggested for residential and automotive A/C


Type TEK-Mate
Base unit includes - Sensor, (2) D size alkaline batteries, spare filters, a hard plastic carrying case
Operating temperature - -20 to 50 °C (-4 to 122 °F)
Minimum sensitivity - 0.25 oz./year (7 g/a)
Sensitivity according to EN14624 (R134a) - 2 g/a
Controls - One multi-function button for power and high/low sensitivity selection
Power source - (2) D size alkaline batteries
Battery life - Approximately 16 hours
Weight with batteries - 1.54 lb. (0.7 kg)
Probe length - 15 in. (38 cm)
Certifications - EN 14624:2012, CE marking per Safety and EMC


Part Number Description
703-020-G1 Replacement Sensor
705-600-G1 Replacement filters
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