Foot/Meter ultrasonic distance meter with laser pointer, LCD screen

Foot/Meter ultrasonic distance meter with laser pointer,LCD screen  

Color: Yellow
With laser point aiming
Foot/Meter function button
LCD screen on a luminous background
Auto stop: switches off if you do not press any key for 4 min.
Memory: allows you to measure and to store 3 different measures
Calculation of area and volume.
Addition and Subtraction function: allows you to add or subtract 2 measures.
Clearing of memory function: allow you to delete quickly all the measures stored.
Correction of errors: the distance measurer indicates that a distance measured is either too long, or too short.
Power supply: 1 x 9V Alkaline type 6LR*1 Battery (Not included)
Accuracy: +/*0.5%
Frequency: *0 kHz (ultrasonic pickup)
Working temperature: 0oC ~ *3oC
Range: 0.*1m to *5m
Dimensions (H-P-l): **2 x *3 x *7mm
Weight (without battery): **4.6g
Laser beam: Wattage 1mW (mW =milliwatt)
Wavelength: **0nm (nm =nanometer)
postage:1 x Ultrasonic distance meter
1 x Instruction Manual