Ultrasonic distance measurer

Distance meter: 0.5～15m(single Unit) 1～60m(Double Unit) Accuracy: ±1.5%(single Unit) ±2%(Double Unit) Metric-inch interconversion √ Working condition 0～30℃ 30-70%RH Laser positioning √ Show-Low power √ Calculate Area and volume √ Calculate length accumulate √ Automate/hand power off √ LED backlit display √ Response time 2s Measure Establishment Standards √ Single computer and double computer test choose power switch √ Working frequency 40khz(single Unit) 20khz(Double Unit) KEY BEEP,wrong beep and confirm beep √ Power supply 9V alkaline cell LCD size 56*28.3mm Product color: yellow+black Product weight 315g Product size 150*75*46mm