40m 60m 80m Electronic Ruler Distance Instrument Infrared Measuring Laser Range Finder

High accuracy, high accuracy and wide measurement range, clear LCD with backlight for easy reading.
Quickly measure distance, area and volume for easy operation.
Unit of measure between meters ( m ), inches ( in ), and feet ( ft ).
Easily position with a bright laser pointer.
Indirect measurement of Pythagorean theorem.
Continuous measurement ( maximum / minimum ).
Data hold / data clear function.
An indicator for measuring the reference edge / battery / signal strength.  
Automatic / manual power off function, laser automatically off.
Compact and hand-held design, portable and convenient.
Widely used in construction and industry, especially in large areas such as rooms, apartments, buildings, real estate, factories, warehouses, etc.
Material: ABS 
Measurement time: 0.1 - 3s 
Display: LCD with backlight
Accuracy: ± 2mm / ± 0.06in 
Unit of measurement: m / in / ft 
Laser rating: Class II
Laser wavelength: 635nm 
Laser output: < 1mW 
Waterproof and dustproof rating: IP54 
Laser auto off: 60s 
The power is automatically turned off: 480s 
Power: 2 x 1.5V AAA battery