Features: - Ergonomic Design: Light and portable to carry. With the anti-sweat and anti-slip handle, this scanner can easily cope with long term operation. - Quality Material: Made of quality ABS material, much more durable. - Copper Core Large Coil: Large area probe, fast response & high sensitivity detection, so that metals have no place to hide. - Easy to Use: One key to switch alarm mode, simple and convenient to use. - 2 Alarm Modes: Beep/vibration alert + green/red indicator. Capable of adjusting suitable mode according to different sites. - Optional Sensitivity: High / low. Upgraded sensitivity adjustable, one key to switch. - Longer Endurance: Adopt intelligent electricity saving technology, low power consumption, capable of working continuously for more than 40 hours. - Battery Alarm: When the battery runs out, there is automatic continuous sound or vibration alarm. - External Charging Jack: Convenient to replenish electricity when the power is low. Specifications: Material: ABS Color: Black Power Supply: 9V 6F22 Battery (NOT included) Power: 270mW Operating Voltage: 7V-9V Operating Current: