Utilizing 635 nm Class II laser diode, SK103PZ Self-Leveling Combination Cross-Line/Point Laser provides all possible reference lines required in leveling, aligning, plumbing, and squaring applications. Unit has line and point accuracy of ±1/8 in. error rate at 30 ft. Also equipped with 635 nm Class II laser diode, LD050P Laser Distance Measure features operating range up to 164 ft with accuracy of ±5/64 in., while LD080P Laser Distance Measure provides 262 ft range with accuracy of ±1/16 in.