Feature:1. Quick response, 60 seconds warm-up, 3 seconds response, 6-level adjustable sensitivity, the maximum sensitivity is 0.11oz/yr.2. High efficiency, builtin air pump, which makes the reaction and recovery faster, and ensure the detection efficiency.3. High-accuracy heating diode sensor, triggered in R11 / R22 / R404a / R410a / R600a / R1234yf and all halogenated refrigerants (including CFC, HFC, HCFC, HC, HFO and mixtures).4. High-brightness digital tube display, display the degree of leakage in a wide range with progressive lighting.5. Made of high qualiy material of metal and ABS, which makes it durable and have high reliability.Specification:Item Type: Refrigerant Leak DetectorMaterial: Metal+ABSOperation Mode: Insert 3 x 1.5V AA batteries (not included), then you can useMinimum Detectable Leak Rate: 3g/yrMaximum Sensitivity: 0.11oz/yrPower Supply (LD-100): 3 x 1.5V AA batteries (not included)Response Time: <3sWarm-up Time: 60sDisplay Interface: Highlight digital tubeWorking Temperature: 0-50Sensitivity: 6 levelsWorking Humidity: <80%RH, no condensationOperation Button: ON/OFF---Power ON/OFFReset---Reset ButtonSENS---Sensitivity ButtonMUTE---Mute ButtonMain Features: 1. Sensor Type: Heated diode sensor2. Minimum Sensitivity: 3g/yr3. Response Time: <3s4. Warm Up Time: <60s5. Ambient Environment: Temperature: 0 C~50 C; Humidity: < 80% RH(non condensing)6. Application Of Refrigerant: It Will Respond To All Halogenated(including Chlorine Of Fluorine) Refrigerants. This includes, but is not limited to: CFCs e.g.R12,R11,R500,R503 etc...HCFCs e.g.R22,R123,R124,R502 etc...HFCs e.g.R134a,R404a,R410A,R407C etc...CH R600a.Package List:1 x Host1 x ManualNote:Due to manual measurement, please allow errors.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.