Rugged, high-impact ABS case with reinforced coil compartment. Large 10 cm scan surface for quick, thorough scanning. Sound alarm, red LED light and vibration indicates the detection of metal. Selfcalibrating,no need for periodic sensitivity adjustments. Optional rechargeable battery kit. Detection distances: pistol - 90 mm, six inches knife - 60 mm, razor blades: 30 mm, pin: 10 mm. Specifications Dimensions: 410 x 80 x 42 mm (L x W x H) Weight: 400 g Frequency: 25 kHz Power: 9V (6F22) standard or rechargeable battery (optional) Operating temperature: -10 °C to +55 °C Relative humidity: 0 to 95% without condensation
