Refrigerant Leak Detector Microprocessor controlled circuit with Advanced Digital Signal Processing . Detect all Halogenated refrigerants . Certified to SAE J1627 for R12, R22 & R134a . Variable frequency audible alarm . Constant Power Indication . Cordless and portable, operate on 2 C-cell batteries . 14 (35.5cm) flexible stainless probe . Spare sensing tip included . UL Classified for Intrinsic Safety . CE Approved . Carrying case included . Optional reference leak source . Two Year Warranty . Single switch control XL-1A No -