This intelligent Electronic Distance Measuring Tool sends out narrow beams of ultrasonic waves that "bounce" off solid objects back to the hand-held receiver, a microprocessor then converts elapsed time into a distance measurement and displays it on the LCD. Built-in laser reference can be used to improve its accuracy. This Ultrasonic Distance Estimator tape is reliable, accurate, precise and easy to use. Areas and volumes can be easily and conveniently calculated by simply pressing a few button.
 
Laser to target the point to which you want to measure
Measurement range  0.6 to 15m (2 to 50 feet)
Accuracy: ±0.5% ±1 digit
Resolutions:   0.01m(1 feet)
Aper ture angle:   approx. ±5 degrees
Laser diode type:   Red laser diode 650nm
Power supply:   6F22(9V)×1
Batterylife: 10 hours of continous dynamic
Calcutates area and volume: √
Auto converts feets to meters: √
Back light: √
Measurement with alkaline battery: √
Dimensions:   136mm×59mm×38mm
Weight:   Approx.150g (including battery)
Calculation range Length: 9999m
Area: 99999㎡
Volume: 99999m3