Ground Search Metal Detector, CSI 250, ABS Plastic; Aluminum Material, Inside Length (In.) -, Inside Width (In.) -, Inside Height (In.) -, Inside Depth (In.) -, Exterior Length (In.) 42 to 51 (Adjustable), Exterior Width (In.) 6 1/2 in, Exterior Height (In.) 51 in, Exterior Depth (In.) 9 in, Thickness (In.) -, Weight (Lbs.) 2.7 lb, Outranging Power -, Signal Output (dB) -, Audio Alarm Tone & Volume Adjustable, Operating Frequency (Hz) 6.5 kHz, Max. Operating Temp. 0 Degrees to +130 Degrees F