Product Introduction
The Sokkia B20 high-precision automatic optical level is equipped with a 22x optical lens, providing clear and intuitive imaging. The instrument achieves a measured accuracy of ±2.5 mm per kilometer round trip, meeting the requirements of routine tasks such as construction, earthwork, site grading, and simple elevation surveys. When used with the OM5 micrometer adapter, this level can achieve even higher measurement accuracy. When using the OM5 micrometer scale accessory, measurements must be taken with a chromium-nickel-iron alloy leveling rod marked in centimeters. Equipped with a proven magnetic damping compensation system, it features responsive automatic leveling and excellent vibration resistance. The instrument body supports close-range observation, allowing for flexible operation in confined work environments such as excavation pits and indoor spaces. The entire unit features IPX6 dust and water resistance, making it suitable for outdoor environments with variable weather conditions. With a sturdy yet lightweight design, low learning curve, high durability, and cost-effectiveness, it is the ideal entry-level choice for daily leveling tasks by engineering teams.
The Sokkia B20 high-precision automatic optical level features a splash-proof housing design. When used with the OM5 micrometer scale adapter, this level enables even higher-precision measurements. When using the OM5 micrometer scale accessory, measurements must be taken with a chromium-nickel-iron alloy leveling rod marked in centimeters.
Product Parameter (specification)
| Model | В20 |
| Telescope | |
| Length | - |
| Magnification | 32× |
| Objective diameter | 42 mm |
| Resolution | 3″ |
| Field of view (at 100 m) | 1°20′ |
| Minimum focusing distance | 0.2 m from objective, 0.3 m from instrument center |
| Image | Erect (upright) |
| Reticle pattern | Wedge-shaped (with clin) |
| Stadia multiplying constant | 100 |
| Stadia additive constant | 0 |
| Focusing | Dual-speed |
| Sight | Optical |
| Objective sunshade | Retractable |
| Accuracy (RMS per 1 km double run) | |
| Without micrometer | 0.7 mm |
| With micrometer | 0.5 mm |
| Compensator | |
| Type | Pendulum with magnetic damping |
| Accuracy / Range | 0.3″ / ±15′ |
| Circular level | |
| Sensitivity | 10′ / 2 mm |
| Display | Pentaprism |
| Horizontal circle | |
| Diameter | 103 mm |
| Graduation interval | 1° |
| Other parameters | |
| Horizontal circle drive | Endless, without clamp, accessible from both sides |
| Dust/water protection | IPX6 |
| Operating temperature | –20 °C to +50 °C |
| Storage temperature | –40 °C to +70 °C |
| Dimensions (length × width × height) | 215 mm × 130 mm × 140 mm |
| Weight | 1.85 kg |
Product Feature And Application
±2.5mm/km accuracy, fit for general construction, earthwork and site leveling
22× magnification, clear view for daily scale reading

4-wire suspension + magnetic damping; fast auto-leveling, vibration & temperature resistant, stable on tough sites.

IPX6 dust & water resistant; withstands heavy rain, dust & humidity-all-weather reliability.
Short minimum focus, available for pits, indoor and narrow working areas

Prodection Details



Prodect Qualification

Exihibition Show

Deliver, Shipping And Serving

Latest News
Shandong Surveying Information Technology Co., Ltd. is a professional manufacturer and one-stop supplier of surveying and mapping instruments, with nearly 20 years of industry experience. We specialize in the production of RTK receivers, automatic levels, total stations and theodolites, and also act as an authorized agent for multiple well-known industry brands, covering a full range of engineering surveying tools, measuring instruments and experimental equipment. We integrate production, global trade, technical support and after-sales service, committed to providing global customers with high-quality products and professional solutions. We look forward to cooperating with you!



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