Features It is an Ultrasonic Leak Detector Use ergonomics It is easy and fast for user to use with simple key operation mode and comfortable hand feeling Quick and simple location of air water dust leaks By using this instrument you can quickly and accurately locate leaks in any pressure and vacuum system In addition it can be used to detect electrical discharge in switches Transformer insulators circuit breakers relay bus bars and etc to prevent accidents Specification Model EM282Color WhiteBlackFrequency Response 40kHz2kHzBattery Type 9V battery Not included Operation Temperature 0 40Item Weight 80gItem Size 191 x 50 x 29mm Package included 1 x Ultrasonic Leak Detector1 x Ultrasonic Transmitter1 x Headphone1 x Carry Bag1 x User Manual Details pictures