Ultrasonic leak detector

Ultrasonic leak detector, designed and manufactured to detect small leaks in vacuum infusion. Very efficient and easy to use. It includes:

1) Leak Detector
2) Patented Resonator Touch Probe
3) Wave Guide
4) Hi-Fi Folding Headset with volume control
5) Small Carrying Case
6) 9 Volt Battery

Features and benefits:
Not affected by wind
Ten Element LED Bar Graph shows signal strength
On the fly Sensitivity Adjustment aids in locating leaks quickly
True sound reproduction ensures fast recognition of leaks
Not affected from other sounds

Specifications
Mechanical:
Dimensions:(LWD) 4.15"(10.5cm) x 2.4"(61mm) x 0.875"(22.22mm)
Overall length: 5.5"(14cm)
Body materials: ABS
Body finish: blue ABS
Connector: 3.5mm Stereo
Top label: velvet lexan, back printed
Weight: 0.3lb (138gr) includes battery

Electrical:
Airborne sensor sensitivity: -80db/V-μbar
Detection performance: 1.5oz/yr refrigerant
Ultrasound converter type: heterodyne
Frequency response, airborne: 36 kHz to 42 kHz
Heterodyne oscillator: analog
Heterodyne filter: 4 kHz
Sensitivity control: continually variable slide
Output, audio: 0 Hz to 4kHz
Output, visual: 10 element bar graph
Battery type: 9 volt
Run time: 80-120 hrs