Call us: 0915 184 2914

YOUR PARTNER IN SURVEYING INSTRUMENTS NEEDS

Engineering / Surveying / Sales / Repair /

Calibration / Rental / Registration of Instrument

RTK GNSS System R90-X

METEOR S680P

Portable Network GNSS RTK Receiver

R2 SERIES

Prismless 400M

RIS SERIES

600M Prismless

Cut & Fill Volume Capabilities

Graphical Display

AUTO LEVEL DSZ3

Magnification: 32X

Dust and Water Proof

Super Clear Optics

Handheld Distance Meter PD-5 series

New Distance Meter PD Series

DELUXE HEAVY DUTY

TRIPOD

with quick lock

RANGE POLE

Lightweight & Heavy Duty

Reflectorize Prism Set

Need services for your surveying equipment?

Auto Level Topcon AT-B4

Model: Auto Level Topcon AT-B4

General Introduction: 24x magnification, 2.0mm accuracy per 1km double run

Details

Specifications

Model	AT-B2	AT-B3/AT-B3A	AT-B4/AT-B4A
Telescope
Length	8.46 in. (215mm)	8.46 in. (215mm)	8.46 in. (215mm)
Magnification	32x	28x	24x
Objective Aperture	1.65 in. (42mm)	1.42 in. (36mm)	1.26 in. (32mm)
Resolving Power	3"	3.5"	4"
Field of View @328ft/100m	1°20' (7.5ft/2.3m)	1°25' (8.2ft/2.5m)	1°25' (8.2ft/2.5m)
Minimum Focus (from end of telescope)	7.9 in. (0.2m)	7.9 in. (0.2m)	7.9 in. (0.2m)
Image	Erect	Erect	Erect
Recticle Pattern	Wedge	Cross Line	Cross Line
Stadia Constant	0	0	0
Stadia Ratio	100	100	100
Focusing Knob	2-Speed	1-Speed	1-Speed
Sighting Aid	Peep Sight	Peep Sight	Gun Sight
Lens Hood	Retractable	N/A	N/A
Accuracy (standard deviation for 1km double run leveling)
Without Micrometer	0.03 in. (0.7mm)	0.06 in. (1.5mm)	0.08 in. (2.0mm)
With Micrometer	0.02 in. (0.5mm)	N/A	N/A
Compensator
Type	Pendulum compensator with magnetic damping system
Setting Accuracy	0.3"	0.5"
Working Range	± 15'
Circular Level
Sensitivity	10'/2mm
Mirror	Pentaprism	Plane Mirror
Horizontal Circle
Diameter	4.1 in. (103mm)
Graduations	1°/1gon
General
Horizontal Motion Drive	Clampless, endless, double-sided knobs
Water Resistance	IPX6 (IEC 60529:2001)
Operating Temperature	-4 to +122°F (-20 to +50°C)
Size
Width	5.12 in. (130mm)
Length	8.46 in. (215mm)
Height	5.51 in. (140mm)	5.31 in. (135mm)
Weight	4.1 lb (1.85kg)	3.7 lb (1.7kg)/3.3 lb (1.5kg)