Gold Member Since 2017
Nanjing Longjun Survey Instrument Co., Ltd.

Auto Level, Automatic Level, Dumpy Level manufacturer / supplier in China, offering Topcon Style Auto Level Dumpy Level (AT-B4), Heavy Duty Camera Tripod / Telescope Tripod / Camera Tripod LJ 360, Digital Camera Tripod with 360 Degree LJ-2111 and so on.

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Topcon Style Auto Level Dumpy Level (AT-B4)

FOB Price: US $94-97 / Piece
Min. Order: 4 Pieces
Min. Order FOB Price
4 Pieces US $94-97/ Piece
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Port: Shanghai, China
Transport Package: Standard Export Carton
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: AT-B4
  • Magnification: 24 ×
  • Water Protection: IP66
  • Trademark: Neutro Packing
  • Origin: China
  • Accuracy: 2mm
  • Compensator: Magnetic
  • Imitated: Topcon
  • Specification: L*W*H: 215*130*135mm
  • HS Code: 9015300000
Product Description
Topcon Style Auto Level Dumpy Level (AT-B4)
Telescope Objective aperture32mm(1.26 in)36mm(1.42 in)42mm(1.65 in)
Magnification 24 × 28 × 32 ×
Field of view 1°25' 1°20'
Resolving power 4 .0"  3 .5"  3.0" 
Shortest focus0.3m (1.0 ft)(from center of instrument)
Stadia multiplication constant100
Stadia additive constant0
Coarse sightingwithoutwithwith
CompensatorDamping systemmagnetic
Working range±15'
Setting accurancy 0.5 "0.3"
Leveling accurancy2.0mm1.5mm1.0mm
Horizontal circleDiameter 103mm(4.1in)
Graduation/estimation1°(1 gon)/ 0.1°((0.1 gon)
Sensitivity of circular level 10'/2mm
Horizontal fine motion screwDouble-sided endless drive
GeneralWater resistanceIP66
Base Concave and flat
Base screw¢5/8in
Weight  1.70kg 1.85kg
Case 1.38kg


Topcon Style Auto Level Dumpy Level (AT-B4)

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