Specification:

• Power:9V (6F22) standard
• Detection distance, The sensitivity of the detector is determined primarily by the size, shape and composition of the object to be detected. Typical performance figures are given below:
  Pin: 30-60mm
  One coin: 75-100mm
  6 inches knife: 160-180mm
  64model handgun: 180-195mm
• Frequency:35KHz
• Alarming mode: Alarming with buzzer & LED, and vibration synchronized
• Voltage:9V (6F22)
• Weight:225G (without battery)
• Size:40(L) ×8(W) × 4(H)cm
• Operating Temperature:-20℃ to +55℃