With a working range of up to 2,600 feet, the Spectra Precision LL400HV has self-leveling vertical capability for large construction projects and alignment setups. This rotary laser features automatic Grade Match and PlaneLok functionality when paired with the included HL760 laser receiver. The LL400HV package also comes with a small carrying case and alkaline batteries.
Single-Axis Slope Mode
The LL400HV is self-leveling horizontally and vertically within ±5 degrees and has an accuracy of 1/16 inch per 100 feet. It also features a single-axis slope mode that provides grade matching with self-leveling cross axis for better accuracy. To avoid inaccurate readings, it has an out-of-level alert that automatically shuts off the laser when moved or knocked out of place.
Spectra HL760 Laser Detector
The HL760 enables the advanced functions of Grade Match and PlaneLok with wireless communication between the LL400HV and laser receiver. Grade Match slopes the laser automatically to match the fall between two elevations, while PlaneLok provides maximum stability and accuracy by automatically locking the beam on the receiver and keeping it on-grade.
With a unique fingerprint function, the HL760 laser detector only accepts the beam from the laser it is paired with. This feature reduces errors and conflict between contractors working in close proximity with other laser levels. In addition, this Spectra laser receiver can be paired with another HL760 for a longer range wireless remote display and monitoring. The CR600 receiver is also an option when a machine mounted display elevation is required.
Optional RC402N Remote Control
The optional Spectra RC402N remote control provides the ability to make grade changes and start automatic alignments from up to 330 feet away. It offers an easy to use menu-driven interface and features a backlit LCD with leveling indicators for easy viewing in low light conditions.
Combined with full weatherproofing and dustproofing, the HV302 enables construction professionals to operate the LL400HV laser level in adverse environmental conditions. It can also survive drops of up to three feet onto concrete and tripod tip-overs up to five feet due to its metal sunshade and tough composite material housing. Using alkaline batteries, it works up to 60 hours of continuous use.
This Spectra self-leveling laser comes with a 5-year manufacturer’s warranty.