Sewerin Aquaphon A50 Basic Acoustic Leak Locator - Backpack ModelAquaPhon A50 Basic Kit The reasonable entry level model for professional acoustic water leak detection: compact on hand efficient The AQUAPHON system provides professional, electro acoustic water leak detection. The A 50 receiver and various microphones make the pre location and pinpointing of leaks possible. When both microphone and headphones are attached the device boasts impressively high reproduction quality. The display helps by visualizing the