Topcon AT-B Series Auto Levels – Precision & Durability for Surveying

Topcon AT-B Series Auto Levels - Precision You Can Rely On

AT-B4 Level x24°  @ £164.00 (ex VAT)
AT-B3 Level x28°​  @ £363.76  (ex VAT)
AT-B2 Level x32°​  @ £800.00  (ex VAT)
 

When accuracy matters, the Topcon AT-B Series Auto Levels deliver. Designed for construction professionals, surveyors, and engineers, these levels offer exceptional stability and precision, even in challenging job site conditions. Whether you’re working on a building project, roadwork, or land surveying, the AT-B Series ensures fast, reliable results every time.

Built for Performance in Any Environment

 

 • Crystal-Clear Optics—Get sharp, high-contrast images with 32x, 28x, or 24x magnification, even in low-light conditions.

•  Magnetic Damping Compensator—Automatically stabilises the level, reducing errors from vibrations or movement.

• IPX6 Waterproof & Dustproof—Tough enough to handle rain, dust, and rugged job sites without compromising accuracy.

•  Short Minimum Focus (20 cm) – Perfect for tight spaces or detailed close-range measurements.

• Precision Angle Adjustments—Integrated horizontal circle allows for easy angle measurements and fine-tuning.

•  AT-B2 – 32x magnification, ±0.3 mm accuracy (best for high-precision work)

•  AT-B3 – 28x magnification, ±0.5 mm accuracy (versatile for most leveling tasks)

•  AT-B4 – 24x magnification, ±0.7 mm accuracy (ideal for general site work
 

• Fast & Easy Setup: Spend less time adjusting and more time working.

• Reliable in Any Condition: Performs consistently, rain or shine.

• Tried & Tested by Experts: A favourite among contractors and surveyors worldwide.

 

• Instrument

• Hex Wrench

• Lens cap

• Cleaning cloth

• Vinyl cover

• Operator’s manual

• Hard Carrying case 
AT-B SERIES TECHNICAL DATA: 

FEATURE	AT-B2	AT-B3	AT-B4
Magnification	32x	28x	24x
Objective Aperture	42 mm	36 mm	32 mm
Resolving Power	3"	3.5"	4"
Field of View (at 100 m)	1°20' (2.3 m)	1°25' (2.5 m)	1°25' (2.5 m)
Minimum Focus Distance	20 cm (7.9 in.)	20 cm (7.9 in.)	20 cm (7.9 in.)
Compensating Range	±15'	±15'	±15'
Accuracy (1 km double run)	0.7 mm (no micrometer), 0.5 mm (with micrometer)	1.5 mm	2.0 mm
Horizontal Circle Diameter	103 mm	103 mm	103 mm
Minimum Division	1° or 1 gon	1° or 1 gon	1° or 1 gon
Waterproof Rating	IPX6	IPX6	IPX6
Operating Temperature Range	-20°C to +50°C (-4°F to +122°F)	-20°C to +50°C (-4°F to +122°F)	-20°C to +50°C (-4°F to 122°F)
Dimensions (L x W x H)	215 mm x 130 mm  x 140 mm	215 mm x 130 mm x 140 mm	214 mm x 130 mm x 135 mm
Weight	1.85 kg (4.1 lbs)	1.7 kg (3.7 lbs)	1.7 kg (3.7 lbs)