TRL143(red)/TRL143G(green), TRL144( red )/TRL144G(green), TRL145(RED)/TRL145G(green) ●  Auto leveling technologic and high accuracy electronic bubble sensor ●   Wide leveling range and high accuracy ●   Manual Leveling and anti wind function,elevation warning ●   Vertical place to gerneration horizontal plane and 1 vertical line(with laser plummet) ●   Lie down place to gerneration vertical plane and 1 horizontal line ●   In common use rotation speed and Region Scan function ●   Slope can be set by manual input or automatic ●   Remote can be operate all function ●   With user level calibration function, easy to calibration accuracy ●   Error indication by LED, easy to trouble shooting ●   High performance Lithuim Battery, Long Operation time ●   12V DC external power. Adapt to various applications. ●   Water proof and dust proof ●   Anti shock design by Rubber coating ●   Strong and reliable Aluminium base