Portable Gyro Theodolite

ER-GT-20(≤20") Features:
Orienteering accuracy ≤20"(1σ)
​Volume (no theodolite) ≤Φ150mm×h360mm
Working mode Manual.

Product Details

ER-GT-20 Portable Gyro Theodolite


The principle of reverse point tracking method and high orientation precision

The DC permanent magnet gyro motor is used to reduce the temperature rise of the sensitive part of the gyroscope

The stability of the equipment is good.Detachable design, convenient to carry


Tunnel penetration measurement

Subway engineering survey

Mine through surveying

College survey teaching

Radar precision orientation

Setting up the azimuth datum

Navigation equipment calibration


Orienteering accuracy


North seeking principle

Integral formula

North seeking time


Working mode


Physical characteristics

Volume (no theodolite)


Weight (excluding theodolite)


Use of the environment

ambient temperature


relative humidity


Storage environment

ambient temperature


relative humidity



1. What is your quotation condition?

If you have DHL or Fedex account ,we can quote EXW price ,otherwise CIF or FOB price.

2.Do you have any discount when procurement? 

We will quote sample price at first and we will quote volume price if you need more quantity.

3.How long is the delivery time?

For sensors,parts,modules : in stock-one week;no stock-2-4weeks; For systems,generally ,8-12 weeks.

4.How to deal with the quality problems?

If confirmation of product quality problem we can replace it freely for customer in the shortest period.

If interested in Portable Gyro Theodolite, pls contact us : info@ericcointernational.com

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