Topcon Auto Level AT-B4A
| Magnification | 24x |
| Type | Pendulum compensator with magnetic damping system |
| Operating Temperature | -4°F to +122°F (-20ºC to +50ºC) |
| Waterproof | IPX6 (IEC 60529:2001) |
| Dimensions | 5.12 in. (130mm) x W 8.46 in. (215mm) x D 5.51 in. (140mm) x H |
| Weight | AT-B3: 4.1 3.7 lbs. (1.7kg) |
| Object Aperture | 32 mm (1.26 inch) |
| Setting Accuracy | 0.5” |
Topcon auto level AT-B4A is the ideal device for determining height differentials on busy and noisy job sites. With a completely new small lightweight design, they have excellent visibility of horizontal circle, superior gear ratio for shock and vibration and improved tangents and knobs.
The IPx6 rating ensures that the ATB-4A is protected against powerful water jets from all directions, meaning that it withstands sudden showers or torrential rainfall. The advanced protection design also deters clouding or condensation inside the telescope.
• 24x magnifications
• Rapid, accurate, and stable automatic compensation
• Ultra-short 20cm focusing
• All-weather dependability
• Endless fine horizontal adjustments
Applications of Topcon Auto Level AT-B4A
- Construction Projects
- Road Construction
- Land Surveying
- Site Development
- Civil Engineering Projects
Why Choose Skipper Technologies?
Skipper Technologies is an authorized distributor of Topcon survey instruments in India, providing genuine products, technical support, and nationwide service.
Auto Level FAQ
The Topcon AT-B4A Auto Level is used for precise leveling and elevation measurements in construction, land surveying, road projects, and civil engineering applications.
Yes. The Topcon AT-B4A is ideal for road construction, grade checking, leveling, and site preparation work.
The instrument operates efficiently between -20°C and +50°C, making it suitable for various environmental conditions.
The main differences are in magnification and measurement performance:
- AT-B2: 32x magnification
- AT-B3A: 28x magnification
- AT-B4A: 24x magnification
All models feature waterproof protection and reliable leveling accuracy.
Yes, the Topcon AT-B4A is widely used for land surveying, benchmark establishment, and elevation measurements.