MI-M-66 Valve and Box Locator is designed specially for finding buried or paved over valves, boxes or vaults. In addition, the MI-M-66 locates survey markers, water or gas meters, conduit, manholes and any other concealed metallic objects. The MI-M-66 detects all metals including aluminum, brass, copper, iron, nickel, steel or tin.

Combining sensitivity and accuracy with maximum ground penetration, the MI-M-66 eliminates any guesswork when pinpointing hidden metallic objects. The electronic balance of the MI-M-66 is easily and quickly tuned for detection within seconds, while also allowing for maximum audio and visual indications.

In the Fisher tradition, the MI-M-66 is affordable, tough, and simple to use while providing maximum performance. A two-year limited war­ranty comes standard with the unit.

Simple operation - only 2 knobs.

UItra-sensitivity and maximum penetration through soil, asphalt or concrete.

Ground rejection VLF (very low frequency) eliminates false signals.

Detects all metals.

Built-in battery test.

Analog meter and audio target signal.

Adjustable shaft.

Fully submersible 8-inch search coil.

Weather resistant design.

Search Loop Configuration:

Double D (direct wired)

Loop Output Frequency: 4.5 kHz

Output Indication:

Speaker: 16 ohm impedance

Audio frequency: 450 Hz

Power Supply: 9V, each

Power Consumption:

(-9V): 17 mA

(+9V): 4 mA min, 6 mA sound threshold, 125 mA max sound

 Weight: 4.25 lbs with 8" coil

Operating Temperature:

-4°F to +158°F (-20°C to +70°C)

Search loop immersible in water

Dimensions:

Length 28" to 48" (71 cm to 122 cm), adjustable

Shipping Weight: 7 lbs

Shipping Dimensions:

34.75” x 12.75" x 5.25" (88.3 x 32.4 x 13.3cm)