Features:

• Highly sensitive.
• Simple and convenient to use, no adjustment is required ;
• The detection distance will not be changed when the battery voltage drops from 9V to abou t 7V
• Low power consumption ,can work for 40 hours continuously
• There is automatic and continues alarm when the battery is used up
• Switch on /off audio prompt function
• With external rechargeable socket hole
• Has audio, light and vibration handoff switch

Sensitivity Adjustment:

• The sensitivity shall be adjusted when performance instability is observed or sound is produced when detecting human body 
• without any metal stuff because the detection distance is less than the stipulated requirement or the sensitivity is too high
• Insert a small straight-shaped screwdriver into the small hole of the handle of the detector and rotate clockwise, 
• until a sound is head, then rotate counter-clockwise barely to the position where no sound is produced ,
• then rotate for another half a circle , until the sensitivity meets the requirement.

Packing List:

• 1x PD140 Metal detector
• 1x User Manual
• 1x Charger