Eathtek Replacement Portable Freon Leak Detector Refrigerant Halogen R134a R410a R22a Detector Bag Air Condition HVAC Health and Safety Assistant Detects all types of halogen refrigerants Ultra-low concussion circuit design. More stable, longer battery life Audible and visual leak indicators Tri-color visual display of battery voltage All pictures are taken from the real item, please check carefully before bidding.