Product Description

Good Performance Sokkia B30 Dumply Level Price

SPECIFICATIONS

Model	B40	B30	B20
Telescope
Length	215mm(8.46 inch)
Objective aperture	32mm	36mm	42mm
Magnification	24X	28X	32X
Image	Erect
Resolving power	4"	3.5"	3.0"
Field of view(at 100m)	1° 25′ (2.5m)		1° 20′ (2.3m)
Minimum focussing distance	0.2m (7.9in.) from end of telescope
	0.3m (1ft.) from instrument cener.
Reticle pattern	Cross hairs		wedge
Stadia ratio	100
Stadia constant	0
sighting aid	Gun sight	Peep sight
Focusing Knob	1-speed		2-speed
Lense hood	-		Retractable
Accuracy(standard deviation for 1km double run leveling)
Without micrometer	2.0mm	1.5mm	0.7mm
	(0.08in.)	(0.06in.)	(0.03in.)
With micrometer			0.5mm
			(0.02in.)
Compensator
Type	pendulum compensator with magnetic damping system
Working range	± 15′
Setting accuracy	0.5"		0.3"
Horizontal Circle
Diameter	103mm (4.1in.)
Graduation	1°/1gon
General
Sensitivity of circular level	10′/2mm
Mirror for circular level	Plane mirror		pentaprism
Horizontal motion drive	Clampless, endless, double-sided knobs
Water resistance	IPX6(IEC60529)
Operating temperature	-20-+50°C (-4 to +122°F)
Size	122mm× 215mm× 135mm		130mm× 215mm× 140mm
Weight	1.7kg (3.7 lb.)		1.85kg (4.1 lb.)

Packing & Delivery

FAQ

1. who are we?
We are based in Shanghai, China, start from 2016,sell to Southeast Asia(30.00%),Africa(25.00%),South America(15.00%),North America(10.00%),Mid East(5.00%),South Asia(5.00%),Eastern Europe(3.00%),Oceania(2.00%),Central America(2.00%),Southern Europe(2.00%),Eastern Asia(1.00%). There are total about 1-4 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
GNSS Receiver,Total Station,Level,UAV,Marine Product

4.why should you buy from us not from other suppliers?
Offer technical support and repair by our experts; Give survey consultance to fresh surveyors; Present suggestion on suitable equipment and software according to csutomer's project request

5. who are we what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,PayPal,Western Union,Cash;
Language Spoken:English,Chinese,Spanish,Hin