Ultrasonic Distance Measurer with Laser Pointer, range: 0.5-18M CP-3008 CP-3008 Ultrasonic Distance Measurer 0.5-18M Laser Pointer Digital rangefinder CP-3008 Ultrasonic Distance Measurer with Laser Pointer, LCD display, calculator CP3008 18m Handheld Infrared Ultrasonic Distance Measurer Meter Tester Laser Description Specifications With laser pointer Foot/Meter display options Measuring Range: 0.5m to 18m "SET" button: helps to decide whether the length of the device itself should be included in the measurement. LCD screen with LED backlight Auto shutdown after 15 seconds without pressing any key Support sum-up,multiplication and subtraction of 2 measurement data. Correction of errors: "Error" is displayed when the actual distance falls out of the measuring range Power supply: 1 x 9V Alkaline type 6LR61 Battery (Not included) Accuracy: +/-0.5% Ultrasonic Frequency: 40 kHz Working temperature: 0 ¡æ ~ 43 ¡æ Dimensions (H-P-l): 142 x 73 x 47mm Weight (without battery): 144.6g Laser beam: Wattage 1mW (mW =milliwatt) Wavelength: 650nm (nm =nanometer) Package includes: 1 x Ultrasonic distance meter 1 x English Instructional Manual