Product Details
The CW-20 is an all-purpose high-performance security metal detector designed to locate all types of metal, featuring the capability to operate at three different frequencies to minimize interference. It detects both ferrous and non-ferrous metals and includes a momentary low toggle switch to reduce interference from steel rebar commonly found in concrete floors. The device operates at an operating frequency of 7.1 kHz and can be configured to either emit a high-pitch sound or quietly vibrate upon detecting metal. The CW-20 requires one 9-volt battery for operation and is backed by Fisher's two-year product warranty, ensuring reliability and peace of mind for users.








