Feature: 1. PROTECTIVE HOUSING: Cross line leveler has a durable housing surrounded by a rubber edge that protects the leveler from accidental drops 2. ACCURATE AND DURABLE: The self leveling leveler uses an enhanced pendulum frame to ensure consistent accuracy and durability 3. AUTOMATIC OR MANUAL MODE: In automatic leveling mode, the crosshair leveler red light beam will automatically level within ±3°, and the beam will blink when exceeds the automatic leveling range. Under manual mode, laser can be locked at any angle, suitable for hanging pictures, collages, etc. 4. SINGLE OR DUAL LINE USE: This electronic laser 2 stage line includes two laser modules, the vertical and horizontal laser can be turned on separately, you can turn off the unwanted laser to save power, or you can provide crossover lines according to your needs 5. PORTABLE AND PRACTICAL: Self leveling laser is simple to operate, lightweight and practical, convenient to carry, can be used for both tooling or household. Adopt LD high end light source, fine without stray light Specification: Item Type: Self Leveling Laser Material: Plastic and metal Wavelength: 635nm for red line, 650nM for DOT Accuracy: ±2.5mm per 5meter Line Width: <2.5mm per 5meter Unbalanced Warning: Flashing alarm Temperature: -5 ~ 45℃ Light Source: LD Stable Equilibrium Time: <5 Seconds Automatic Leveling Range: ±3° Laser Angle: 90°±3° Power Supply: 2 x AA batteries(not included) Working Distance: ≥2Meter Laser Power: 5mW. Package List: 1 x Level1 x Charging Cable(random color)1 x Storage Bag1 x User Manual