Distance Measurer

Specifications: 1) Range: 0.6 - 15m / 2 - 50ft 2) Accuracy: a) +/-1% + 1 digit range: <2.5m b) +/-0.5% + 1 digit range: >2.5m 3) Meter and foot conversion 4) Working frequency: 40kHz 5) Memory function: 3 memory data for length, width and height 6) Addition or subtraction for measurement data 7) Error: when measurement over range, error appears 8) Auto power off 9) Low batt indication 10) Laser pointer 11) Beep function 12) 1 x 9V battery required 13) Working temperature: 15 - 35oC