This Ultrasonic Range Finder adopt laser technology, can calculate length area and volume.

Features:
Calculate length, area and volume accurately & quickly.
Laser to target the point to which you want to measure.
Auto converts feets to meters.
With back light
Measurement range: 0.6 to 15m (2 to 50 feet).
Calculation Length range: 9999m
Calculation Area range: 99999m2
Calculation Volume range: 99999m3
It is worked perfectly in doors.
10 hours of continous dynamic measurement with alkaline battery

Specifications:
Measurement range: 0.6 to 15m (2 to 50 feet)
Recommended operating environment: in doors
Accuracy: ±0.5%±1digit
Resolutions: 0.01m (1feet)
Aperture angle: approx. ±5 degrees
Laser diode type: Red laser diode 650nm
Power supply: 6F22 9V (not include)
Battery life: 10 hours
Calculation range:
Length: 9999m
Area: 99999m2
Volume: 99999m3
Item size: 14 * 5.7 * 3.8cm
Item weight: 120g
Package size: 24 * 15.6 * 6cm
Package weight: 210g