这种多功能的空间测量器是利用超声波原理进行测量的,只要一按键钮,液晶屏上就马上显示出所测得的尺寸;按另一个键钮,便可以知道空间的面积和体积。测量器内装有计算器,有8个功能键,测量距离可达12米,可以自动进行米一英尺一英寸换算,读数显示自动保持 This multi-functional space measurer uses the principle of ultrasonics to make measurements. As long as a button is pressed, the measured size is immediately displayed on the LCD screen; pressing another button, the area and volume of the space can be known. The measuring instrument is equipped with a calculator, there are 8 function keys, the measurement distance can reach 12 meters, the meter can be automatically converted by one foot one inch, and the reading display is automatically maintained.