1. Efficient detection: The air conditioning leak detection device can quickly detect of leakage in the air conditioning system, improve the repair speed and efficiency. 2. Environmental protection and energy saving: By accurately detecting air conditioning leaks, a large amount of Freon and other substances can be avoided, which is in line with the concept of environmental protection and energy conservation. 3. Easy to operate: The tool is simple to operate, convenient and fast, and can complete the detection and processing work without professional knowledge. 4. Multi-function: The device can detect various types of air conditioning systems and is suitable for various models and of automobile air conditioning maintenance work. 5. High precision: The device detectors air conditioning leaks and provides more accurate maintenance . Power Supply:3 x AAA battery (included batteries) Color: As Shown Material: Metal+Plastic Package Contents: 1 * Car Leak Detection Kit 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.