The CM4371 Series are AC / DC Clamp Meters for electricians who work always and everywhere to secure electrical systems in society. To meet their professional requirements, varieties of functions are integrated into the handy casing which is still dust and water resistant, also conformed to IEC’s safety standard. To meet their ergonomic need, the blue elastomer is placed for better grip, and the form is carefully designed to have the sectional perimeters of the housing gradually increase toward the sensor head. The choice of material and form improve ergonomics during operations.