Item No.: C99AT135
.Frequency Response:40kHz ± 2kHz.  
.Acceptor Size:192*50*30mm.  
.Transmitter Size:101*59*28mm.  
.Locating Leaks In Pressure And Vacuum System.  
.Detecting And Locating The Source Of The Ultrasonic Emission
 Generated By Gas Or Liquid Flowing Through A Small Restrictive Opening.  
.It Uses The Advanced Ultrasonic Sensing Technique And Features Small Size,
 Light Weight, Reliable Detection,Easy Use And Utility.  
.In Conjunction With Transmitter Ultrasonic Transmitter.  
.Operating Condition:Temperature 0~40℃,Relative Humidity＜80%.  
.Power：9V Battery.