Features:
Designed with versatile functions and especially for needs of high-precision distance measurements.

Lightweight, simple, instant, reliable to measure, a tool that get your work done significantly easier.

Remarkable accuracy and fast measurement; Laser intensity indication.
Innovative and ergonomic structure design.
Smarter volume and area calculations based on measured length, width and height.
Widely used in household construction, decoration, transportation, fire fighting, gardening, city planning, city appearance management, water project monitoring, electric power maintenance etc.
A perfect substitute of traditional measurement tools(tape, ruler), your best assistant of measurement.

Specifications:

Brand UNI-T
Model(Optional) UT390B+ UT392B
Accuracy (m) ±(1.5mm+d*5/100000)
Measuring Distance (m) 40m 100m
Unit M/in/ft
Laser Class 635nm,＜1mW, Class2(II)
Continuous Measurement Yes Yes
Area/Volume Calculation Yes Yes
Pythagoras Theorem Calculation Yes Yes
Add/Subtract  Yes Yes
Length Add/Subtract Yes Yes
Area Add/Subtract 
Volume Add/Subtract  Yes Yes
MAX/MIN Yes Yes
Automatic calibration Yes Yes
Data Storage 30 30
Battery life 8000times of measurement
Auto laser off  Yes Yes
Buzzer Indication Yes Yes
Battery Level Indicator Yes Yes
Leveling instrument Yes Yes
Auto Power Off Yes Yes
Storage Temperature -20℃~60℃
Battery TypeAAA battery (NOT included)
Size11.2*5*2.5cm/4.4*2*1in
Weight233g(approx.)

Package Includes:
1 x Range Finder (batteries are NOT included)