With the striking design of the Fluke 330A Series, the 337A takes a new look at the way you make current measurements. Taking how you use your tools into a revolutionary new direction, and how to get the results you need, faster and more conveniently. The result is a new, ergonomic concept, shaped to fit your hand and to access tight areas with ease. The series feature a large display that is backlit -on most models- so readings can be taken in virtually any lighting situation. Auto-shut-off maximizes battery life so the meter works when you need it. A choice of five models gives you the right functions for your measurements.