... lies in the sensitivity of nano-materials to the refrigerant. Jiangsu Province Jingchuang Electric Co., Ltd --- Elitech ... -up ,quick response time°cTechnical parameters:Detecting Gas: R22,4134a, R407c, R404a, R410a, R507(AZ-50) and all otherCFCs, HCFCs, ... 10sDisplay: Seven and dual-color LED indication; red indicates refrigerant leakage amount; blue indicates the sensitivity levelAlarm: The shorter ...