1. Incorporated with advanced leak detect technology. It's an ideal and economic leak detector. Compact in appearance, it is stable and easy to operate. Detect all kind of refrigerants 2. Sensitivity can be adjusted at any time and the detector can be adjusted automatically to the best state of detection. Inner precise IC with ultra-low circuit consumption offer more stable function and lengthens battery life. Dual-color visual display of battery voltage. 3. Excellent sensor brings high sensitivity and long service time. 4. Applications: Traditional sensor with an updated analogue circuit fast triggers on R11, R22, R134A, R404a, R410A and all halogenated refrigerants including HFCs, CFCs, HCFCs and blends. Technical parameters: 1. Operating temperature: 0 -52 (30F to 125F); 2. Maximum sensitivity: 6 g/yr,for all halogenated refrigerants; 3. Battery life: approximately 20 hours normal use; 4. Response time: Instantaneous 5. Work mode: continuous, no limitation 6. Fixed probe length: 20cm 7. Dimensions:22.9x6.5x6.5 (cm) 8. Warm-up time: approximately 6 seconds 9. Reset time: 2to 10 seconds 10. Power supply 6V DC, four AAA alkaline batteries(battery is not included) The Leak Detector may also be used to detect leaks in other systems and storage/ recovery containers. It respond to all halogenated (including Chlorine and Fluorine) refrigerants. This includes but not limited to: CFCs e.g.R12, R11,R500,R503 etc. HCFCs e.g. R22,R123, R124,R502 etc. HFCs e.g. R134a, R404s, R125 etc. Blends such asAZ-50. HP62. MP39 etc. Detect Ethylene Oxide gas leaks in hospital equipment (it detect the halogenated carrier gas). Detect -6 in high voltage . Detect most gases that contain chlorine, fluorine and bromine ( gases). Detect cleaning agents used in dry cleaning applications such as perchloroethylene . Detect gases in fire-extinguishing system. Color:As Shown Material:plastic Package Contents: 1 * Freon Leak Detector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.