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| Brand Name : | Topcon | 
| Model Number : | AT-B2,At-B4 | 
| Delivery Time : | within 3-5work days after the goods are paid . | 
| Payment Terms : | TT ,Western Union | 
| Supply Ability : | 10000 | 
| Price : | Negotiable | 
Topcon AT-B Series Auto Level :
· 3 Models - 32x, 28x, and 24x Magnifications
· Rapid, Accurate, and Stable Automatic Compensation
· Ultra-Short 20cm (7.9 in.) Focusing
· All-Weather Dependability
· Clampless, Endless Fine Horizontal Adjustments

AT-B series SPECIFICATIONS
AT-Bseries SPECIFICATIONS  | AT-B2  | AT-B3  | AT-B4  | |
Telescope  | ||||
Length  | 215mm (8.46 in.)  | |||
Magnification  | 32X  | 28X  | 24X  | |
Objective Aperture  | 42mm (1.65 in.)  | 36mm (1.42 in.)  | 32mm (1.26 in.)  | |
Resolving Power  | 3″  | 3.5″  | 4″  | |
Field of View  | 1°20′  | 1°25′  | ||
Minimum Focus  | 0.2m (7.9 in.) from end of telescope  | |||
Image  | Erect  | |||
Stadia Constant  | 0  | |||
Stadia Ratio  | 100  | |||
Accuracy (1km double run leveling)  | ||||
Without Micrometer  | 0.7mm (0.03 in.)  | 1.5mm (0.06 in.)  | 2.0mm (0.08 in.)  | |
With Micrometer  | 0.5mm (0.02 in.)  | n/a  | ||
Compensator  | ||||
Type  | Pendulum compensator with magnetic damping system  | |||
Setting Accuracy  | 0.3″  | 0.5″  | ||
Working Range  | ±15′  | |||
Circular level  | ||||
Sensitivity  | 10′ / 2mm  | |||
Horizontal circle  | ||||
Diameter  | 103mm (4.1 in.)  | |||
Minimum Division  | 1°/ 1gon  | |||
General  | ||||
Water Resistance  | IPX6 (IEC 60529:2001)  | |||
Operating Temperature  | -20℃ to +50℃ (-4°F to +122°F)  | |||
Size  | Width  | 130mm (5.12 in.)  | ||
Length  | 215mm (8.46 in.)  | |||
Height  | 140mm (5.51 in.)  | 135mm (5.31 in.)  | ||
Weight  | 1.85kg (4.1 lbs.)  | 1.7kg (3.7 lbs.)  | ||
                                 
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| Company Info. | 
| Shanghai Hengyide Electronic Technology Co.,Ltd Ltd. | 
| Verified Supplier | 
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