Feature:1. Reliable Structure: The auto level adopts an aluminum alloy body, wear and oxidation resistance. It has IP54 water and dust proof rating, and the compensator comes withsealing ring, allowing the level to work in harsh environments.2. Accurate Measurement: This optical level supports self leveling to ensure accurate measurement. Magnetic damping compensator, with large compensation space, stable structure, and stable measurement.3. Clear Field of View: This self leveling auto level is equipped with high definition eyepiece to ensure accurate observation. The cross line can be clearly observed by rotating the eyepiece, supports cross line correction.4. Bubble Observer: Equipped with round water bubble observer to assist in leveling, adjust the foot screw handwheel to the center circle, rotate the bubble instrument 180, and keep the round bubble in the center.5. Scale Display: This automatic optical level has a clear dial, simple and intuitive, supports 360 degree fine tuning, 360 degree level scale display, with scale locating identification, improving work efficiency.Specification:Item Type: Automatic LevelMaterial: Aluminum AlloyCompensator Type: Magnetic Damping CompensatorRound Trip Deviation Per 1KM: 1.5mmMagnification: 32XImage: Erect ImageObjective Lens Aperture: Approx. 30mm / 1.18inField of View: 1 Degree 20 MinutesShortest Visual Distance: Approx. 0.5m / 1.64ftMultiplication Addition Constant: 100/0Compensator Working Range: 15 MinutesLeveling Accuracy: 0.4 SecondsRound Bubble Accuracy: 8 Minutes / 2mmRotating Base: 360 or 400 Angle OptionalAutomatic Leveling Accuracy: 0.5mmBattery: 1 x Lithium Battery (built in battery)Capacity: 500mAh (single battery capacity)Water and Dust Proof: IP54.Package List:1 x Automatic Level1 x Vertical Line2 x Wrenches1 x User Manual1 x Storage Box