Specifications Amplifier: Frequency Range: 50 Hz - 2,200 Hz Display: Large LCD bar graph + numeric value Data Storage: Up to 250 sound levels Power Supply: Four C-cell Dry Batteries Weather Resistance: IP52 Operating Temperature: -4°F to 130°F Battery Life: Min. 24 hours Weight: 35 oz. Dimensions: 6.4" W × 3" H × 5.7" D Sensor: Type: Piezoelectric ceramic Waterproof Rating: IP67 Product Description The SubSurface Instruments LD-18 is a digital water leak detector designed to locate leaks quickly and accurately, even in noisy environments. Its all-digital amplifier features automatic noise reduction to filter out transient sounds such as passing vehicles and foot traffic, making it highly effective for use in populated areas. The LD-18 stores and graphs sound levels at different locations along a pipeline, helping pinpoint the exact leak location by identifying peak noise levels. It includes five high-frequency filters, three low-frequency filters, and two notch filters to remove continuous ambient noise from sources like motors, A/C units, and wind. The large LCD screen shows a bar graph and numeric sound intensity reading, and a USB connection allows for data download. Designed for use on streets, sidewalks, and utility infrastructure, the LD-18 comes with a padded case, stereo headphones, ground mic, 3-section rod, magnet base, and more. It is powered by four C-cell batteries, offering up to 24 hours of continuous use. In the Box Amplifier with LCD Display, Controls, and USB Connection (to PC Computers) Padded Case for Amplifier 40 inches Belt (50 inches and 60 inches Optional) Ground Microphone and Handswitch Magnet Base and Nutdriver Heavy-Duty ABS Plastic Carrying Case Aviation-Grade Stereo Headphones PC Software and USB Cable Brochures and Manuals SubSurface LD-18 Digital Water Leak Detector Product Datasheet SubSurface LD-18 Digital Water Leak Detector Product Manual
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