Compass® Refrigerant Leak Detector

A new direction in features, function and value

Integral to Compass is the INFICON patented heated diode sensor technology, delivering outstanding sensitivity to all refrigerants yet resisting jobsite contaminants such as dust, dirt and oil.

For maximum versatility and ease of use, Compass has features such as rechargeable batteries, the ability to operate on AC power, adjustable high/low sensitivity and a series of LED leak indicators. The ergonomic design with rubberized grip fits your hand perfectly for comfortable, secure operation.


  • Patented heated diode sensor provides excellent sensitivity
  • Detects R22, R134a, R404a, R410a, R448a, R507 (AZ-50), R32, HFO1234yf, and all other CFCs, HCFCs, HFCs, and HFOs
  • Automatic background adjustment (“zeroing”)
  • Intuitive, easy one button operation
  • Power indicator shows when battery is low


  • Runs on NiMH batteries or AC adapter
  • Headphone jack
  • Made in USA
  • 2-year over-the-counter replacement warranty


Type Compass
Base unit includes Sensor, NiMH battery, spare filters, wall charger, 12 V car charger, hard plastic carrying case
Operating Temperature -20 to 50 °C (-4 to 122 °F)
Minimum sensitivity 0.15 oz/year (4 g/a)
Power source NiMH battery, AC adapter
Battery life 5.5 hours
Weight with batteries 1.15 lb. (0.522 kg)
Probe length 15 in. (38 cm)
Certifications CE marking per safety and EMC

Part Number

Part Number Description
717-202-G1 Compass,115V US adapter, English manual
717-202-G4 Compass, 100V Japanese adapter, Japanese manual
717-202-G6 Compass, 230V Euro adapter, English manual


Part Number Description
703-020-G1 Replacement Sensor
712-700-G1 Spare Power Stick (batteries)
717-701-G1 Replacement filters and probe cap
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