Technical Specifications:
| MODEL | B20 | B30 | B40 |
| Length | 215mm | ||
| Image | Erect | ||
| Objective Aperture | 42mm | 36mm | 32mm |
| Magnification | 32X | 28X | 24X |
| Field of View | 1°20' | 1°25' | |
| Resolving Power | 3.0" | 3.5" | 4.0" |
| Minimum Focus | 0.3m | ||
| Stadia Ratio | 1:100 | ||
| Additive Constant | 0 | ||
| Diameter | 103mm | ||
| Graduation | 1° or 1 gon | ||
| Working Range | ±15' | ||
| Accuracy | 0.3"/1' | 0.5"/1' | |
| Without Micrometer | 0.7mm | 1.5mm | 2.0mm |
| With Micrometer | 0.5mm | / | |
| Water Resistance | IP66 | ||
| Working Temperature |  -20ºC ~ 50ºC | ||
| Storage Temperature |  -40ºC ~ 70ºC | ||
| Weight | 21.5×13×14 (cm) | ||
| Size | 1.85KGs | 1.7KGs | |
 
Features:
★ Enhanced Automatic Magnetic-Damping Compensator, free from vibration
★ Ultra clear lens for long range observation
★ Infinity Adjustable Focus Screw
★ Excellent shock test performance
★ Top dustproof and waterproof capability IP66
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Standard Configuration:
Optional Accessories
Yellow ATS-4 Aluminum Tripod  
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Aluminum Telescopic Staff AGR5
Company Profile
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About Us
Geodex was established in 2012 by a small group of engineers with over 10 years of experience in the surveying industry. We offer advanced high-precision geographic surveying and mapping equipment such as satellite navigation systems, total stations, theodolites, automatic levels, and laser levels.
These products are widely used for precise measurements, surveys, and mapping tasks in fields like land management, construction, roads, railways, urban infrastructure, topography, cadastral surveys, monitoring, and marine projects.
Geodex is based in China, with its headquarters in Guangzhou and main factories in Guangzhou and Beijing. Our main clients include geographic surveying departments and construction companies, and our products are also sold to universities and colleges for educational purposes.
We export our products worldwide and have built a strong reputation due to our high-quality products and excellent customer and technical support.
Mission Statement
Our mission is to deliver surveying equipment globally and help our clients become more competitive and achieve greater business success.
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Packaging & Shipping
Geodex offers reliable overseas shipping solutions. Products can be delivered via express couriers such as DHL, FedEx, UPS, and TNT, or through air and sea freight services. We also provide land transport options and special line forwarder agents as per buyer requirements.
About Technical Supports
1) We provide cost-effective surveying instruments.
2) Along with professional surveying solutions and strong technical support, including maintenance and parts service.
3) All products are quality-checked and recalibrated before shipment.
4) Fast delivery, with stock available in Guangzhou.
5) Professional import and export services.
6) One-year warranty on all surveying equipment.
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Contact
Guangzhou Geoland Instrument Co., Ltd. Â
Add: 410, No. 7 Minxing Street, Huangpu District, Guangzhou, 510530, Guangdong, China
TEL: +86 (0)20-8251 6799Â Â Â Â Â FAX: +86 (0)20-8251 6499
Website: http://www.geoland.cn
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