Ultrasonic Digital Distance Meter Laser pointer

Features:
It is a perfect tool to quickly know the distance, area and volume of a room.
Wide measuring range and high sensitivity and accuracy.
It can measure the distances in a straight-line from 1.5 feet o 60 feet (About 0.5 to 18 meters).
Your distance measurer transmits ultrasonic waves to a point you want to measure.
Afterwards, it measures the time taken by the waves to reflect and then calculates and re-transcribes the distance.
LCD with Backlight.
Automatic shutdown if the key is not pressed within 30 seconds.
 
Specifications:
Laser output power: less than 1mw
Power supply: 1 x 9v Alkaline Battery (battery not included)
Units of measurement: feet / meter
Measure Distance :1.5 Feet to 60 Feet. (About 0.5 to 18 meters)
Area, volume, addition, subtraction calculation.
Working temperature 32 F to 109.4 F (0 'C to 43 'C)
Units of Measure: Feet/Meters
Accuracy: +/- 0.5% +/-1
Frequency: 40kHz (ultrasonic pickup)
Resolution 0.01M or 1/2 Inch.
Dimensions: about 142 x 73 x 47 mm
Caution: Don't stare into the laser beam and also don't shoot laser beam to any other's eyes.
The Laser emitted from the unit is visible laser of 650mm wavelength.
 
Package Includes:
1 x Ultrasonic Distance Measurer
1 x English Manual