Thanks for using our product incorporated with advanced leak detect technology and excellent parts of an apparatus.We are convinced that we will meet your requirements: 1.Detect all halogen refrigerants. 2.Sensitive manual adjusting function makes it convenient to use. 3.Well-desingned and exquisite circuit. 4.Sound and light alarming indicator. 5.Eccellent senor to detect subtle leak halogen gases. 6.Portable design with suitcase. 7.Flexible long handle to detect leak source at any place. Descriptions to Operation: 1.Install four cell size 7 alkaline batteries. 2.Red inducator lighr show the instrument in working state. 3.Balancing adjusting:Detect the leak when it sounds click,click in a adjusting. 4.Examine the refrigerant system to discover the cranny and eroded places first and pay prior attention to such places. 5.No contact between the dirty places and sensing tip.User dry towel and compressor to make it clean instead of the use of detergent to aviod the chemical reaction. 6.Following the coherent route to detect in order to avoid omission of leaks.Remember to detect the rest places after finding a leak hole.Sensing tip should move at the speed of 25-50mm/s with a distance of no more than 5mm arund the every place to detect in order to attain the best inspection result.A roaring stands for a leak detected. 7.Take the tool away and readjust the sensitivity handle to reach the maximum sensitivity.Inspect the place again carefully and cofirm and exact place of leak.You are recommended to adjust the sensitivity as often as you can and shut up the tool when finishing the detect to prolong the life longevity of batteries and avoid the alarm in the state of maximum sensitivity. NOTE: 1.Make sure that the leak environment is free of wind to avoid the leak gas blowing away from the leak soure.Alarming and false inspection will occur. 2.Detect and reapair the big cranny,then detect the tiny one when they coexist. 3.Avoid the contact with the moist and imperegnant in case of alarming 4.Long time use of the batteries will influence the stability of the tool and false alarming. Application range: 1.Detect leaks in air-conditioner and other refrigerant systems.It will respond all halogen gases(including Ch lorine and Florine),which include but are not limited to: HFCS 2.Detect ehylene Oxide gas leaks in hospital sterilizing equipment(it will detect the homogenate carrier gas). 3.Detect SF-6 in high voltage circuit breakers. 4.Detect most gases including Chlorine,Fluorine and Bromine(Halogen gases). 5.Detect cleaning agents used in dry cleaning applications such as perchlororthy. Package Contents:(Not Including Battery) 1 x Halogen Leak Detector with probe 1 x Instruction Sheet 1 x Black carrying pouch