?Packing List and Warranty?The engine chassis ear kit includes automotive detector tool, 6 clip-on sensors, sensor extension cords (3 for a 5-meter extension cord and 2 for a 3-meter extension cord), over-ear earphones. All accessories are neatly packed in the tool case for easy carrying. And we offer 12 months warranty, if you encounter any problems during use, you can get help from us, we will replace or refund, customer satisfaction is our top priority. ?Quickly Detection and Positioning?This chassis ears engine noise detector is specially designed and developed for checking abnormal noise of automobile engine, abnormal noise of body, and abnormal noise of chassis, etc. It can quickly find out the noise source and its location, accurately locate the fault, easily identify the early problems of the car and facilitate car repair as soon as possible. ?High Sensitivity?The chassis ears detector has high sensitivity and the earphone pick-up sound loudness can be controlled by adjusting its volume control. The automotive noise detector turn the indicator light clockwise to increase the sensitivity, and rotate counter clockwise to reduce sensitivity, the range of the indicator light changes with the adjustment of the sensitivity. ?LED Indicator and Adjustable Sensitivity?The power indicator lights up when the chassis ears starts up and begins testing. The abnormal sound indicator is divided into three colors: green, yellow, and red. The color changes are determined by the detected volume. The minimum volume is green and the maximum is red. By adjusting the light sensitivity knob, the indicator can be used to assist in judging the location of the anomalous noise. ?Multi-Channel Chassis Ears ?6-channel detector design, the host computer with integrated 6-channel signal receiver is used with 6 different sensors ,sound and light synchronization. Engine noise detector can detect abnormal noise in different locations and adjust the reception of different channels according to the detection situation. When a generator is running, it can detect the impact of vibration due the failure of a bearing, gear, valve, crank, cylinder, gearbox, vehicle body noise, etc.