To adjust the detector sensitivity | Harbor Freight Tools 94138

Basic operation of the hand wand metal detector:

1.Slide the ON / OFF switch to the ON position to turn the detector on. Slide it to the OFF position to turn it OFF. When the detector is turned ON, it will “chirp” briefly.

2.When not in use, turn the switch to OFF to conserve battery life.

3.To detect metal, pass the scanner near the search area. If metal is detected, you will hear a high pitched tone, and the LED light will come on. The sound and light warnings will stop if the detector is moved away from the metal. The detector will emit a long tone for large objects and a short tone for small objects.

NOTE: Before using the detector, always test it by turning it on and scanning a small piece of metal, such as a coin. Be sure the warning sound is a smooth, continuous tone, and the light shines steadily. A chirping sound and flashing light indicate low battery strength. Replace the battery before using.

To adjust the detector sensitivity:

The detector is set to optimum sensitivity for most security scanning purposes.You can adjust the sensitivity for other applications or as needed.

1.Remove the rubber cover from the handle by sliding it off.You will see two small holes in the middle of the handle. Please refer to diagram on page 6.

2.Insert the tip of a small, flat blade screwdriver into the 1/8” hole. Turn it slightly to engage the adjustment screw inside. Do not adjust the fitting in the second hole, which is for factory use only.

3.Using a test object, adjust the control for the desired sensitivity. Turning the screw clockwise increases sensitivity. Turning the screw counterclockwise decreases sensitivity. While keeping the detector stationary at a specific distance from the test object adjust the screw until the alarm sounds. This is your desired sensitivity.

4.Replace the rubber cover on the handle.

SKU 94138

Page 5

94138 specifications

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