Please refer to the following product user manual
http://www.jinlantrade.com/ebay/metaldetectormd3010/img.pdf
Technical Parameters
Battery: 6 x 1.5V AA alkaline batteries (Note: the battery is not allowed to ship by air mail, so the batteries is not included in the box sent to you)
Operating current: Standby – 65mA, Max – 150mA
Operating voltage range: 72 – 9.6V
Operating frequency: 7.5KHZ +/- 1KHZ
Sensitivety: Min. 8 inch (Test Coin: US ¢50)
Audio frequency: 294HZ (re)
330HZ (me)
349HZ (fa)
392HZ (so)
440HZ (la)
494HZ (ti)
523HZ (do)
Tempreture range: -20 ℃ – 60 ℃
Size: 540mm(L) x 345mm(W) x 150mm(H)
Weight: 1.1 kg
With this powerful and versatile device, you can hunt for coins, relics, jewelry, gold, and silver just about anywhere. MD-3010II GROUND SEARCHING METAL DETECTOR
No Clumsy Slack Cable: Hidden search coil cable (connecting between control unit and search coil) avoid entangling and for ease of stem length adjustment. • Headphone Jack: Provided for headphone connection. Both stereo or mono headphone can be used. • Volume Control: For adjusting the output volume to the loud speaker or headphone. • Batteries Condition Indicator: Shows the conditions of the batteries in the battery compartment.
Waterproof Search Coil: Lets you use the detector in the shallow water. • Adjustable Stem: Lets you adjust the detector’s length for comfortable use. The micro-plug that connects the search coil and the controller unit is made of metal which makes the plug more reliable.
Armrest & Stem: Designed to eliminate strain on forearm. The nylon bracket to further secure the slip of the hand compartment after long time holding the detector by arm. • Power: Use six 1.5 volt AA alkaline batteries.
Fully Automatic And All Metal Detectors: The MD-3010II detector detects all kinds of metal objects. Unless you have set for some objects that you do not want to detect. • LCD: The LCD comes with light, it improve to identify the metal in night or caliginous outside. • Target Identity: The detected objects are shown on the LCD display. You can decide immediately if the objects worth to be recovered. • Unwanted Target Elimination: You can set the detector not to respond to some objects. • Unique Tone For Target: You do not have to keep watching the LCD display, when an object is being detected, an unique tone corresponding to a target will generate. You may even searching when there is little or no light.