• Specially designed air sucking system and auto-rest function to achieve high sensitivity of refrigerant leakage test.

• 7 LED tri-colored visual leak level indicator with 15.5"(40 cm)flexible stainless probe.

• 3 levels of sensitivity( small as 3 gr/year) and variable intensity audible alarm.

• Applicable refrigerant: R134a, R404a, R410a, R600a, R290, R407c, R22, R32 and HFO1234yf, etc.

• Warm-up time: 45 seconds.

• Operating temperature: 0-40°C(32-104°F)

• Power: AA battery x 4 or AC adapter.

• LxWxH: 21.7x6.6x5.6cm.