Heated Pentode™ Sensor technology. Refrigerant specific detection. Elimination of false alarms. Unaffected by rapid temperature change. Sensor cannot be “poisoned” by excessive refrigerant. Detects ALL halogenated refrigerants, including R410A. Sensitivity less than 3gr/yr. True mechanical pump provides instant response and clearing. Tri-color visual leak size indication. Tactile keypad controls. Adjustable sensitivity & one touch reset. Mute feature silences audible alarm. Sensor status indication. Battery self test. 40 cm (16') flexible probe. Hard carrying case and battery charger included. Certified to SAE J1627 / E-35422 / EN 14624. CE approved. 2 year warranty.