The Stanley STHT77404 Electric Stud Finder is a versatile tool designed to detect AC wires and provide a warning for safety. With a yellow and black color scheme, this stud finder features measuring technology that is electric and operates with a system of measurement in both metric and standard units. The plastic material used ensures durability and reliability while the AC wire warning feature adds an extra layer of safety for users. Made in China, this model from Stanley is a must-have for any home or workshop setting. Item weight is 4.5 ounces. free shipping to the lower 48.