High Sensitivity Even Detects Small Hidden Metal Objects LED Lights Alerts to the Detection of Metal Choose Between Sound or Vibration Alerts Easy and Convenient Use No Adjustment Necessary High/Low Sensitivity Settings Detection Sensitivity: 2.5mm Steel Ball Battery Required: 9V - Battery Depletion Warning Power Consumption: 270mW- 50mA Operation Frequency: 22kHz Operation Temperature: -20 to 90 degrees F Perfect for Security Safety Indoor/Outdoor Events Net Weight: 14 oz. Dimensions: 16.0'' x 3.3'' x 1.7'' inches
