DUOYI Dy26 ultrasonic leak detector with transmitter

Features Senses pressurized leaks, detects electrical arcing, and finds falling solenoids, valves and bearings. Comes with a transmitter that emits an ultrasonic frequency to help locate leaks that are not pressurized enough to emit frequencies the detector can pick up. Detects any pressurized leaking gas, including chlorofluoro carbon(CFCs),hydrofluoro carbon(HFCs), nitrogen(N), carbon dioxide(CO2) and steam. Specification: Alarm Indication: DY26-R "LEAK" LED lights and the"ticking tone" increases in frequency.  Frequency Response: 40kHz±2kHz  Operating Condition: temperature:0°C - 40°C    Relative humidity: <80%  Battery: 9V, 6F22 or equivalent DY26-R  Size: 171*43*38mm DY26-T  Size:103*70*36mm DY26-R Weight: about 240g DY26-T Weight: about 156g Package list: Detector (DY26-R) * 1 Transmitter (DY26-T) * 1 User's Manual (In English) * 1 Headphone (Universal) * 1 Carry bag * 1