Metal Detector Hand-Held Plastic Material Inside Length (In.) 16.5 Inside Width (In.) 3.5 Inside Height (In.) 1.4 Inside Depth (In.) 1 Exterior Length (In.) 16.5 Exterior Width (In.) 3.5 Exterior Height (In.) 1.4 Exterior Depth (In.) 1.4 Thickness (In.) 1.4 Weight (Lbs.) 0.9 Operating Frequency (Hz) 3 Alterante Frequencies Max Operating Temp 160 Degrees F LED Indicator 9V Battery Battery Life 40 hr. Standards NILECJ-0602.00