Fisher M-97

Fisher's M-97 Valve and Box Locators are designed specially for finding buried or paved over valves, boxes, vaults, manhole covers, etc. The M-97 detects all metals including aluminum, brass, copper, iron, nickel, steel or tin. Key Features: Two knobs and a pushbutton for simple operation Adjustable shaft with double locking stem Ground Effect Rejection VLF eliminates annoying or false signals from wet ground foliage, pavement or mineralized ground High sensitivity for maximum penetration through soil, asphalt or concrete Built-in Battery Test/Pushbutton Tuning Ultra Slow Auto-Tune to stabilize ground tuning and minimize frequency drift Identifies metallic objects by speaker sound and needle movement  Compact size for convenient storage Download Brochure.