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Topcon AT B3A 28X Optical Automatic Level - 101237903

Brand: Topcon
WARRANTY: Backed by Terms of Manufacturer’s Official Warranty


Overall dimensions 5.12” x 8.46” x 5.51”
Weight 3.7 lbs
Quantity 1
Manufacturer Topcon
Model Number 101237903

Topcon AT B3A 28X Optical Automatic Level - 101237903

Brand: Topcon


Regular price $638.99 /each
Was Sale price $720.00
(Save 81.01 - 11%)
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  • Rapid, stable, durable compensator
  • Horizontal circle for measurement
  • All-weather dependability
  • Magnification: 28x
  • Field of view: 1°25’
  • Minimum focus from the center of the instrument: 0.3 m (1 ft)
  • 20-centimeter (7.9-inches)-short minimum focus
  • Focusing knob: 1-speed

Product Information

Accurate leveling and distance measurements are crucial for engineers, construction professionals, and land surveyors to do their job well. To ensure accurate and dependable work every time, the Topcon AT B3A 28X Optical Automatic Level 101237903 is built with a 28x-magnification lens and a high-grade internal magnetic compensator that instantly levels the line of sight.

This automatic level boasts of 1.5-millimeter accuracy without the use of a micrometer. Add to that its compensator’s self-leveling feature that allows it to work well even when there are fine vibrations in the area caused by heavy equipment or vehicles. This doesn’t only make the leveling part of surveyors’ job easy, but it also saves time and reduces errors that could cause additional costs.

This tool is called automatic for a reason, but the user must still set up the device first before it performs its automatic features. The user should manually level the device and ensure that the bubble vial has the bubble inside the black circle. When this is done, the compensator, with a setting accuracy of 0.5 inches, then starts to serve its purpose. What’s more, the 1-speed focusing knob of the device is designed to automatically switch between coarse and fine to provide a rapid and precise focus.

The 101237903 Optical Automatic Level has an integrated pentagonal prism that allows for an easy view of the circular level. Users wouldn’t have to change their eye height to do this, which adds to the convenient features of the device.

The tool’s focus range is ideal even for confined places. For extremely confined places with low light, users can maximize the features of their device by using optional accessories like a digital eyepiece and an optical micrometer (sold separately) to improve accuracy and magnification. All models in Topcon’s AT-B Series are capable of ultra-short focusing, at 20-centimeters or 7.9-inches.

Not only is the 101237903 optical automatic level functionally handy, but it is also highly durable to suit its users’ work environment. Its horizontal circle is dirt- and scratch-proof, and the device boasts of an IPX6 rating which means that it is highly waterproof and can withstand even torrential rains. This feature also protects the tool’s telescope from clouding and condensation, which normally happen to devices when in contact with moisture.

Topcon is one of the top designers and manufacturers of automatic levels for industrial use. Its AT-B Series has other models with other magnification and field of view capacities to suit the various needs of users.

Engineers, construction professionals, and anyone whose work involves land measurement and leveling should have this Topcon AT B3A 28X Optical Automatic Level 101237903. Get this premium-quality device delivered now via Engineer Warehouse.

*Includes plumb bob, hex wrench, adjusting pins, vinyl cover, cleaning cloth, user manual, and hard case


Overall dimensions 5.12” x 8.46” x 5.51”
Weight 3.7 lbs
Quantity 1
Manufacturer Topcon
Model Number 101237903
WARRANTY: Backed by Terms of Manufacturer’s Official Warranty
Covered by Full Topcon Warranty!
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