The CW-20 is a versatile high quality security metal detector at an affordable price. It is capable of locating all types of metal and offers the user a choice of three frequencies to eliminate the possibility of interference. The CW-20 also includes a "Momentary Low" switch to eliminate interference from steel rebar built into many concrete floors. It runs on a 9-volt battery and can be set to vibrate when it finds metal, or emit a high-pitched sound.
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