VLF=Very Low Frequency Operation
The Fisher M-101 metal detector was designed especially for finding reinforcing bars , conduits, and other metal objects embedded in concrete. It also very effectively locates even the smallest metal items carried on or within a person, hence it is useful in security and military applications such as when searching prisoners prior to incarceration. The M-101 is substantially more sensitive that the average low cost metal detectors used at airports, so that a given metal item can be found at a greater distance from the search loop itself.
Searches in water may be up to the connector at the control box. The search loop and cord are waterproof.
Specifications:
Operating Frequency of loop : 4.5 Khz
Sensitivity: 0.2 mV RMS For Full Scale
Sensitivity Adjustment Range: 12:1
Output Indication: Meter-1 Milliamp, 1-100 Linear Scale. Speaker - 16 Ohm Impedance.
Audio Output Frequency: 450 Khz
Power Supply: -/+ 9V, (2) 9V NEDA 1604
Search Loop Configuration Double D
Weight: 2.8 Pounds, (1.3 Kg)
Dimensions: Control box: 3 inch X 5 inch X 6 inch (8cm X 12 cm X 16 cm). Handle-0.75 X 23 inches (1.9 X 58.4 cm)
Shipping Weight : 4 Pounds (1.8 Kg)
Shipping Dimensions: 26.5 inch X 6.25 inch X 6.25 inch (67 X 13 X 16 cm).
Applications
The Model M-101 can locate reinforcing bar, conduit pipes, PK nails, wiring, wall studs or anything metallic.
Ground And Visual Detection
Pre-set circuit eliminates ground effects cause by highly mineralized materials and false signals due to loop movement.
Audio And Visual Detection
Wide View meter permits precise adjustment of penetration and definition of the metal target and precise location of intersections and mesh . The speaker indicates location of the target by emitting a strong signal that can be adjusted with the volume control. A headphone jack permits use of an optional headset.
Quick Tune
Turn the instrument on and only the penetration need be adjusted for most operations, allowing maximum penetration depth for metals
Suggested Retail price for M-101 is $545