Features of AT-B series include:

• The AT-B series can focus on objects at 20cm (7.9in.) in front of the telescope
• With the IPx6 rating, the instrument is protected against powerful water jets from all directions
• Superior telescope design provides clear and bright view
• 2-speed focus (AT-B2 model)
• Horizontal circle is covered for protection against dirt and scratching
• Optional accessories include diagonal eyepiece, 40x eyepiece (AT-B2) and optical micrometer for 0.1mm or 0.001ft. readings (AT-B2)

The three models available are:

• AT-B2: 32x magnification (40x optional), 0.7mm accuracy (0.5mm with an optional micrometer)
• AT-B3: 28x, 1.5mm accuracy
• AT-B4: 24x, 2.0mm accuracy

(Accuracy specifications are based on 1km double-run leveling.)