Handheld Metal Detector With Audio Alert

Product Overview

Description

Operating frequency:52khz +/- 10%(sine wave)
Sensitivity: >5cm(for a us quarter)
Indication: Audio alert and led(red) alert
Audio tone changes as the metal size changes
Blink: When the unit is working properly, the blink indicator(green) flashes
Headphone jack:1/8 connect the headphone with the headphone jack for silent operation
Low sensitivity: To lower the sensitivity, used in place with interference
LED indicators on both front and back faces are optional
Low battery indication
One 9v battery required