The ED-510XL is a hand-held eddy current instrument which accurately detects flaws in metal partsand can sort metals by alloy type. In addition to the versatility of being hand-held, the ED-510XL alsofeatures:The ED-510XL is a hand-held eddy current instrument which accurately detects flaws in metal partsand can sort metals by alloy type. In addition to the versatility of being hand-held, the ED-510XL alsofeatures:• Simplicity of operation, for quick scanning• Solid state design, with integrated circuitry for reliable detection• Variable frequency range of 140KHz to 200KHz• Superior flaw detection in magnetic and non-magnetic materials• Power is provided by a single 9-volt alkaline battery (battery life is 4 to 8 hours depending onuse)• Power is provided by a single 9-volt alkaline battery (battery life is 4 to 8 hours depending onuse)• Interchangeable probes including absolute probes from the ED-520 and ED-530, or specialprobes designed for your application• Interchangeable probes including absolute probes from the ED-520 and ED-530, or specialprobes designed for your application• A sensitivit A sensitivity standard with 0.008" y standard with 0.008", 0.020", and 0.040" milled slots