🔹 RUGGED FOR OUTDOOR USE: Full-time pulse mode allows for good outdoor visibility up to 98ft/30m at full brightness for maximum visibility. We used an German made, Osram green laser, currently rated as the best green laser unit in the word. It is 2 times brighter than red lasers utilizing the same power source. Or Osram laser maintains consistently high performance in ambient temperatures as low as 14°F /-10°C. 🔹 H&V SWITCHABLE: One button operation makes it easy to select Crossed lines, Horizontal or Vertical line. 4*AA alkaline batteries power this level for up to 5 hours of continuous use with both green beams on. 🔹 PROFESSIONAL ACCURACY: ± 2mm at 10m(± 1/13 In. at 33 Ft), bright Class II laser 510nm wavelength, protected by whole TPR soft rubber design, makes Huepar laser level shock resistant, wear resistant and impact resistant. 🔹 VERTICAL BEAM SPREAD COVERS 150°+: An expansion angle of 150°+ easily projects a vertical line from the floor to the ceiling. The Portable Size makes it easy to carry and pack. 🔹 KIT INCLUDES: HUEPAR Box01G Self-Leveling Laser, Easy-to-Adjust magnetic base, Target plate card, Carry pouch, Easy-to-understand Instruction Manual, 1 Yr. Limited Warranty with upgrade to 2 years with product registration.