Metal detector handheld type 3 003b features:
1) portable, fashionable style and operate simply, suitable for detecting metal at any places.
2) Cooperate with safe inspection equipment to increase the efficiency of detecting.
3) Detect all kinds of metals
4) detect both bigger and smaller items according to different objects.

specification: Model 3003b detection method electronics induction detection sensitivity smaller item ex: faster or bolt operating frequency 22. 0khz Alarm buzzer or LED or vibrancy dimension 41x8. 5x4. 5cm Power source 9v battery net weight 410g.