Japan Brand at-B4a Survey Auto Level Surveying Instrument Automatic Level

• Warranty: 1 Year
• Accuracy: 0.5"/0.3"
• Type: Magnetic
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: AT-B4A
• Image: Erect
• Objective Aperture: 42mm
• Min. Focusing Distance: 0.3m
• 1km Double Run Leveling: 2.0/1.5/0.7mm
• Field of View: 1°20"
• Waterproof Grad: Ipx6
• Weight: 1.80kgs
• Transport Package: Individual Package
• Origin: Jiangxi
• HS Code: 9015800090
• Production Capacity: 10, 000PCS/Year
• Package Size: 35.00cm * 25.00cm * 25.00cm
• Package Gross Weight: 10.000kg

Product Description

Japan Brand AT-B4A Survey Auto Level Surveying Instrument Automatic Level

	AT-B2	AT-B3A	AT-B4A
Telescope
Length	215mm(8.46in.)	214mm(8.42in.)	214mm(8.42in.)
Magnification	32X	28X	24X
Objective Aperture	42mm(1.65in.)	36mm(1.42in.)	32mm(1.26in.)
Resolving Power	3''	3.5''	4''
Field of View	1°20'(2.3m/7.5ft)	1°25'(2.5m/8.2ft)
(at 100m/328ft)
Minimum Focus	0.2m(7.9in.)from end of telescope 0.3m(1ft)from instrument center
Image	Erect
Stadia Constant	0
Stadia Ratio	100
Focusing Knob	2-speed	1-speed
Sighting Aid	Peep Sight		Gun Sight
Accuracy (1km double runleveling)
Without Micrometer	0.7mm(0.03in.)	1.5mm(0.06in.)	2.0(0.08in.)
With Micrometer	0.5mm(0.02in.)	N/A
Compensator
Type	Pendulum Compensator With Magnetic Damping System
Setting Accuracy	0.3''	0.5''
Working Range	±15'
Circular Level
Sensitivity	10'/2mm
Horizontal Circle
Diameter	103mm(4.1in.)	99mm(3.9in.)
Minimum Division	1°/1gon
General
Water Resistance	IPX6(IEC 60529:2001)
Operating Temperature	-20 to +50ºC(-4 to +122°F)
Width	130mm(5.12in.)	122mm(4.8in.)
Length	215mm(8.46in.)	214mm(8.4in.)
Height	140mm(5.51in.)
Weight	1.85KG	1.5KG