Solid aluminum construction housing contains circuitry, controls and meter: Weight 2.5lbs. Dimensions: 3" x 6" x 10"
Easy to read sensitive meter that displays microphone response and indicates battery status
Ultra-sensitive microphone to detect a wide range of water leak sounds.
Wide-range controls to adjust amplifier gain, meter sensitivity and filter frequency
Filter Range 20Hz - 500Hz on 'Lo', 20Hz - 3.5KHz on Hi
Padded stereo headphones to reproduce leak sounds and effectively shut out external noise
Perfect for residential and commercial slab leaks
Bell is an optional accessory and may purchased separately.
Perferred by experienced underground leak locating professionals for decades

Goldak 777-B Leak Detection