• High-Low leak sensitivity selector
• Multi color visual display
• Semiconductor gas sensor
• Low battery indication

Specifications:-

• Detecable Gases: R-134a, R-404A, R-407C, R-410A,
• R-22, etc
• Sensitivity: 6g/year
• Alarm Method: Buzzer alarm, LED bar indicator
• Detection Tube Length: 15inch (390mm)
• Warm-Up Time: 90sec
• Battery: 1.5V AA x 4