Garrett’s ALL NEW CSI 250 is simple to operate, yet features unparalleled performance for budget-minded departments and agencies.It includes superior technology such as a graphic target ID, sensitivity adjustment and notch discrimination to accurately identify the type of target detected. The CSI 250 also includes the 6.5×9″ PROformance searchcoil, which covers more ground per sweep and is submersible. This advanced metal detector also features a Target ID Legend designed to identify targets commonly sought in crime scene investigations. Graphic Target ID Cursor (12 Segments) Discrimination: Accept / Reject Notch Electronic Pinpoint Sensitivity, All Metal Depth Adjustment (8 Settings) Battery Condition Indicator Depth Indicator Headphone Jack Interchangeable Search-coils Large LCD Display Microprocessor Controlled Push Button Controls Clear Speaker Tone Tone ID,3 levels Touch-n-Go Operation Weight: 2.7lbs (1.2kg) Operating Frequency: 6.5 kHz Search-coil: Arm Cuff:Adjustable, with strap Touchpad Controls:Power, Pinpoint, Elim (Eliminate), Discrim (Discriminate), Sensitivity, Mode Battery: Four (4) AA batteries provide up to 25 hours of operation. Optional NiMH rechargeable battery provides between 6 and 8 hours on each 12-hour recharge. Warranty: Limited, 24 months parts and labor.