DS40A automatic leveling instrument Features: 1. Steel shaft: A steel central shaft with a copper sleeve on the outside, ensuring smooth rotation 2. X-type suspension wire air damping compensator: X-type suspension wire, with stable structure; key areas are sealed with glue to ensure vibration isolation at critical points 3.40x HD lens: Wide and clear field of view, 40x magnification, HD lens, clear and bright imaging 4. IP54 waterproof, shockproof and drop-resistant: The top cover features a fully sealed design, incorporating a sealing cover and sealing gasket, effectively preventing dust from entering the instrument and affecting observations. 5. High-definition crosshair: The crosshair can be viewed very clearly by rotating the eyepiece. It supports crosshair correction, allowing for the correction of the crosshair through visual adjustment of the screw 6. Clear dial: 360° horizontal scale display Technical Specifications: Model: DS40A Telescope magnification: 40X Standard deviation of round-trip measurement per kilometer: 1.0mm Leveling accuracy: ±0.3″ Compensator working range: ±15′ Telescope imaging: erect image Objective lens aperture: 45mm Field of view angle: 1°17.5′ Minimum visual range: 0.8m Multiplication constant/Addition constant: 100/0 Circular leveling bubble precision: 8′/2mm Scale division: 360° or 400 gon Protection level: IP54 Compensator type: X-shaped suspension wire air damping or magnetic damping Instrument size: 233mm×135mm×155mm Net weight of the instrument: 2.0kg Center thread size: M16 or 5/8"
DS40A automatic leveling instrument Features: 1. Steel shaft: A steel central shaft with a copper sleeve on the outside, ensuring smooth rotation 2. X-type suspension wire air damping compensator: X-type suspension wire, with stable structure; key areas are sealed with glue to ensure vibration isolation at critical points 3.40x HD lens: Wide and clear field of view, 40x magnification, HD lens, clear and bright imaging 4. IP54 waterproof, shockproof and drop-resistant: The top cover features a fully sealed design, incorporating a sealing cover and sealing gasket, effectively preventing dust from entering the instrument and affecting observations. 5. High-definition crosshair: The crosshair can be viewed very clearly by rotating the eyepiece. It supports crosshair correction, allowing for the correction of the crosshair through visual adjustment of the screw 6. Clear dial: 360° horizontal scale display
