Features‎:‎100% and high qualityWith laser pointer Foot/Meter display optionsMeasuring Range‎:‎ 0.5m to 18mLCD screen with LED backlight Auto shutdown after 15 seconds without pressing any keySupport sum‎-up‎,‎ multiplication of various measurement data‎.‎ All stored measurement data can be cleared‎.‎ 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)‎ Specifications‎:‎Material‎:‎ PlasticColor‎:‎ Yellow+BlackAccuracy‎:‎ +/‎-0.5% Ultrasonic Frequency‎:‎ 40 kHzWorking temperature‎:‎ 0 ℃ ~ 43 ℃Dimensions‎:‎ 123 x 55 x 38mm Laser beam‎:‎ Wattage 1mW ‎(‎mW =milliwatt‎)‎ Wavelength‎:‎ 650nm ‎(‎nm =nanometer‎)‎ Package includes‎:‎1 x Ultrasonic distance meter