Topcon AT-B3 Features:
• Durable, Dependable, High Value Auto Levels
• Rapid, Accurate, and Stable Automatic Compensation
• Ultra-Short 20cm ( 7.9 in.) Focusing
• All-Weather Dependability
• Clampless, Endless Fine Horizontal Adjustments

TELESCOPE : AT-B3
• Length : 215mm ( 8.46 in.)
• Magnification : 28X
• Objective Aperture : 36mm ( 1.42 in.)
• Resolving Power : 3.5 in.
• Field of View : 1° 25’ ( at 100m/ 328ft.) ( 2.5m/ 8.2 ft.)
• Min. Focus from end of telescope : 0.2m ( 7.9 in.)
• Min. Focus from instrument center : 0.3m ( 1 ft.)
• Image : Erect
• Stadia Constant : 0
• Stadia Ratio : 100
• Focusing Knob : 1-speed
• Sighting Aid : Gun Sight

ACCURACY : AT-B3
• Without Micrometer : 1.5mm ( 0.06 in.)
• With Micrometer : n/ a

COMPENSATOR : AT-B3
• Type : Pendulum compensator with magnetic damping system
• Setting Accuracy : 0.5 in.
• Working Range : ± 15ft.

CIRCULAR LEVEL : AT-B3
• Sensitivity : 10 ft./ 2mm

HORIZONTAL CIRCLE : AT-B4
• Diameter : 103mm ( 4.1 in.)
• Minimum Division : 1° / 1gon

GENERAL : AT-B3
• Water Resistance : IPX6 ( IEC 60529: 2001)
• Operating Temperature : -4° F to + 122° F ( -20º C to + 50º C)
• Width : 5.12 in. ( 130mm)
• Length : 8.46 in. ( 215mm)
• Height : 5.51 in. ( 140mm)
• Weight : 3.7 lbs. ( 1.7kg)

Complete with :
• Aluminium tripod
• Rambu ukur 3 m