The RD547 from Radiodetection Corporation uses acoustic and hydrogen tracer gas to locate and pinpoint leaks in underground water infrastructure. Supplied in six kit options, it provides the water leak specialist with a flexible toolkit to tackle a broad range of leak types. To locate and trace water pipes, it can be used with the RD550 pulse wave generator. This method is suitable for locating most pipe materials, including PVC, PE, AZ, cast iron and steel. 877/247-3797; www.radiodetection.com.