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, built‑in 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 Detector Material: Metal+ABS Operation Mode: Insert 3 x 1.5V AA batteries (not included), then you can use Minimum Detectable Leak Rate: 3g/yr Maximum Sensitivity: 0.11oz/yr Power Supply (LD-100): 3 x 1.5V AA batteries (not included) Response Time: <3s Warm-up Time: 60s Display Interface: Highlight digital tube Working Temperature: 0-50℃ Sensitivity: 6 levels Working Humidity: <80%RH, no condensation Operation Button: ON/OFF---Power ON/OFF Reset---Reset Button SENS---Sensitivity Button MUTE---Mute Button Main Features: 1. Sensor Type: Heated diode sensor 2. Minimum Sensitivity: 3g/yr 3. Response Time: <3s 4. Warm Up Time: <60s 5. 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 Manual Note: 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.