The THD has a silent vibrating alarm indicator. Ultra sensitive response to metal objects. 

Features: 

• Accurate detection of all ferrous, non-ferrous and stainless steel weapons, contraband and other metallic objects.

• Bright LED flashlight for low light and night operations.

• Useful for scanning IDs and for searching pockets, handbags. • Silent vibrating with Red LED alarm indicator.

• Sealed water-resistant construction.

• Easy ON/OFF battery cover. • 9V battery (included) operation.

• Ballistic weave holster (included): mounts easily on belt or in car.

• Optional rechargeable battery kit.

Works well for all law enforcement operations, but it is also particularly effective for use in schools, bars and clubs, and for corporate security. Built-in flashlight is ideal for law enforcement and night operations. Highly-sensitive - Powerful coverage