FEATURES:

1. Ultra sensitive can detect pin-sized metallic objection.

2. Automatical reset,don't need adjust.

3. Sound and light and vibration and light alarm.

4. When voltage is not enough, the indicator light will flash.

5. Made of strong waterproof material.

6. 360 angle detection

Specification:

1.Sensitivity:>12cm(for a RMB one Yuan Coin)

2.Power:2pcs 9V battery

3.Gross Weight:450g

4.Color Box size:412*157*45mm