Hydrographic Technologies are specialists in the supply of equipment to reduce water loss. Acoustic leak detection equipment, pressure and flow data loggers, hydrant caps and advanced pressure management equipment. Leak Noise Loggers, Leak Noise correlators, water leak detection kits for plumbers, acoustic water leak detector, ground microphone, electronic listening stick and PRV Controllers. NZ supplier of brands including Gutermann Leak Detection, Aquascan, Zonescan, Aquascope & I2O Water. Read more