The Fieldpiece SC56 Swivel Head Clamp Meter is the best clamp meter on the market for the HVAC/R technician. The SC56 is packed with all the essential test parameters necessary to get the job done right. Plus, you can use all the Fieldpiece Accessory Heads via your test leads. In addition, the incredible 180aº swivel head clamp enables you to view your results at any angle. Combine that with the unique wire grabbing claw and the LED flashlight in the SC56 clamp head, and you can easily isolate wires that are hard to reach and/or difficult to see.