Fisher CW-10 - Hand-Held Security Metal Detector Designed to safeguard security sensitive areas such as schools, courtrooms, correctional facilities, sporting events, nightclubs, and other public events. The CW-10 provides precision locating for all types of metal in a highly durable package. The CW-10 gives you the choice between an audio alarm or silent vibrator alarm, and provides an optimum sensitivity level for all your security needs. With no tuning required, the CW-10 is easy to use and serves as an effective locator for unwanted metal objects. Backed by Fisher"s 2 year warranty. Designed for stand alone use or in conjunction with Fisher MScope Portable Walkthrough Metal Detector. Features: * Detects Ferrous and Non-Ferrous Metal * Operating Frequency: 110 kHz * Choice of Audio Alarm or Silent Vibrate Alarm * Easy to Use, 3 Position Switch for Power, Audio and Vibrate * Sensitivity Setting at Optimum Level – No Tuning Required * Balanced and Lightweight – Under 12 oz * Requires 1-9Volt Battery * Low Battery Indicator * Specially manufactured to work with the Fisher MScope Portable Walkthrough Metal Detector * Detects Ferrous and Non-Ferrous Metal * Operating Frequency: 110 kHz * Choice of Audio Alarm or Silent Vibrate Alarm * Sensitivity Setting at Optimum Level - No tuning required