eBay

NEW TOPCON AT-B4 AUTOMATIC OPTICAL LEVEL 24 X MAGNIFICATION

		AT-B2	AT-B3	AT-B4
Telescope
Length		215mm (8.46 in.)
Magnification		32X	28X	24X
Objective Aperture		42mm (1.65 in.)	36mm (1.42 in.)	32mm (1.26 in.)
Resolving Power		3"	3.5"	4"
Field of View (at 100m/328ft.)		1uff9f20' (2.3m / 7.5ft.)	1uff9f25' (2.5m / 8.2ft.)
Minimum Focus		0.2m (7.9 in.) from end of telescope 0.3m (1ft.) from instrument center
Image		Erect
Stadia Constant		0
Stadia Ratio		100
Accuracy (1km double run leveling)
Without Micrometer		0.7mm (0.03 in.)	1.5mm (0.06 in.)	2.0mm (0.08 in.)
With Micrometer		0.5mm (0.02 in.)	n/a
Compensator
Type		Pendulum compensator with magnetic damping system
Setting Accuracy		0.3"	0.5"
Working Range		u00b115'
Circular level
Sensitivity		10' / 2mm
Horizontal circle
Diameter		103mm (4.1 in.)
Minimum Division		1uff9f/ 1gon
General
Water Resistance		IPX6 (IEC 60529:2001)
Operating Temperature		-20u2103 to +50u2103 (-4uff9fF to +122uff9fF)
Size	Width	130mm (5.12 in.)
	Length	215mm (8.46 in.)
	Height	140mm (5.51 in.)		135mm (5.31 in.)
Weight		1.85kg (4.1 lbs.)	1.7kg (3.7 lbs.

100% Brand new and top quality

Shipping:

We Ship to Worldwide,
Items will be shipped within 3 business day on payment received.
Ship to USA via regular airmail, noramlly it will take about 10-15 business days to arrive
And shipping to other place will take about 25-35 days. Due to variation of postal service in different areas, some areas may take a little longer.

Payment:

Payment must be received within 7 business days of auction closing.
We ship to your eBay address. Please make sure your eBay address is correct before you pay.

Warranty and Guarantee:

6 months Warranty. Buy with confidence!
If item is defective in 3 months, We will send you a replacement without extra charger, or offer refund after we receive the defective item.
If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item. But you have to pay the extra shipping fee.

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