Model：GT923

1. Operating frequency: 5.5~5.8KHz 

2. Five operating Mode（ALL-METAL,DISC.MEMORY,JEWELRY,PP ）          

3. Sensitivity: ≥18cm(25 cents, in air); 

4.PP: ≥22cm(25 cents, air);              

5. Alarm indicator: a. LCD indicator     b. Sound indication 

6.DISC identification range is adjustable.                                    

7. Adjustable sensitivity                   

8. Power supply: 2 x9V batteries.       

9. Working current: static ≤23mA; Dynamic ≤50mA.

10：Search coil size： waterproof  26x26cm

Inner box：45x26.5x10cm

Outside carton size：54x52.5x47cm