【Functions】
⊙ Sensitivity：super sensitive, a tiny metal piece like a paper clip can be detected;
⊙ Anti-resistance：resistance can be removed by adjusting button;
⊙ Self-diagnosis：auto diagnosis when starting, no need to adjust;
⊙ Alarm：by sound, buzz and light;
⊙ Recognition function：to distinguish the size and distance of the objects by colors green, yellow and red; to distinguish the size and distance of the objects by sound.
⊙ Work mode：only bigger size metal item will alarm while using low-sensitivity mode (keeping pressing this button while detecting)
⊙ Applications：High decibel designing to use in noisy environment
【Specification】
Working voltage：One standard 9V alkaline battery
Working frequency：95KHZ
Working environment：-20℃ - +55℃
Adjusting：Automatic
Dimension：420mmx41.3mmx83mm
Weight：0.5Kg