?This item is specially designed to measure the distance precisely. Quick measurement of distance， area and volume with one button operation. It's widely used in construction and industries， especially in large areas such as rooms， apartments， buildings， real estates， factories， warehouses， etc.<br> <br> Features:<br> 1 meter tape.<br> Quick measurement of distance， area and volume.<br> Automatic calculation of area and volume.<br> Addition/multi-function of measurement<br> Easy targeting with bright laser pointer.<br> LCD with backlight.<br> Auto correction and error report technology.<br> Low battery indication.<br> Auto / manual power off function.<br> <br> Specifications:<br> Measuring range: 0.05-18m<br> Accuracy: ÷0.5% ÷ 1cm<br> Laser class: class II &lt;1mW<br> Operating temperature: 0 ~ 43 ▲C ( 32 ~ 109.4 ▲F )<br> Battery: 1 * 12V 23A( not included )<br> Item weight: 83g / 2.94oz<br> Item size: 7.5 * 7.2 * 3.5cm / 2.95 * 2.83 * 1.37in ( L * W * H )<br> Package weight: 113g / 4.0oz<br> Package size: 16.5 * 13.8 * 4.5cm / 6.49 * 5.43 * 1.77in ( L * W * H )<br> <br> Package list:<br> 1 * Ultrasonic Distance Meter<br> 1 * Instruction manual ( English )<br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>