Fisher Labs M978 Metal Detector - Valve and Box Locator 8" with auto retune

The M-97 is an all-metal metal detector that can search through concrete and asphalt and was designed for finding buried or paved over valves, boxes, or manhole covers, or any other concealed metallic object. It also locates targets made of aluminum, brass and lead. Please remember, like all Valve and Box Locators, the M-97 is a Metal Detector which should not be used as a substitute for a Utility Line Tracer

• AUTOMATIC RETUNE BUTTON: One-touch automatic retune instantly resets the detector’s signal balance, helping maintain stable performance and accurate target detection when changing locations or encountering interference during hunts.
• ADJUSTABLE SENSITIVITY SELECTOR: The sensitivity selector allows precise control over detection depth and responsiveness, enabling users to fine-tune performance based on ground conditions, target size, and environmental interference.
• MANUAL GROUND COMPENSATION: Manual ground compensation helps reduce false signals caused by mineralized soil, providing improved accuracy and consistent performance across various terrains such as beaches, fields, and rocky ground.
• HEADPHONE JACK FOR PRIVATE USE: Built-in headphone jack allows connection of headphones for clear audio feedback, reducing background noise distractions and making it easier to detect faint target signals in noisy environments.
• ENHANCED CONTROL & USER EXPERIENCE: Combined tuning, sensitivity, and ground balance controls deliver greater precision and adaptability, making this metal detector suitable for both beginners and experienced users seeking reliable results.