Product Details
• It can easily detect pin-size metal articles (3.5cm to the probe)
• It has an independent battery low voltage system and the yellow light will be on
• sound & light and vibration alarm
• With shielded damp-proof sensitivity adjusting hole
• Working power supply: 6F22ND 9 V battery (alkaline battery, rechargeable battery), rechargable battery should not be taken out and rechared (the price not included the charger and battery)
• Alarm modes:Simultaneous sound (vibration)and light alarm