The UniLaser HV550G with its self-levelling horizontal and vertical provides an accuracy of +/- 1mm @ 30m with a range of 100m in diameter without a receiver and 600m with the receiver.
It's fully electronic Servo provides accurate horizontal and vertical self-levelling with -/+ 5 degrees.
Its dual axis provides manual grade setting capabilities. The HV550G also provides a horizontal and vertical plumb for use on your job-site. Included within the HV550G's hardcase is a receiver with clamp, a wall-mount, remote control, laser glasses and a charger for the instrument.