Continuous, precise, high speed gyro


The DeviGyro is an advanced, miniature rate gyro survey instrument supporting high-speed, all-angle, continuous, and multi-shot borehole surveying. Designed for versatility, it is provided through a range of purpose-built running gear configurations suited to a large variety of mining and civil drilling applications.

140 mm / 5.5 in
25 mm
1 in
0.2 kg
0.4 lbs
All physical properties are
calculated without running gear
Azimuth accuracy:
Typical positional accuracy:
Inclination accuracy:
Toolface accuracy:
*Calibrated for temperature range -10C to +60C
Running gear
RG40, RG400, OX Mini, OX, RG30 Slimline & RG30 Helix
Pressure (bar/psi)
Temperature range
-20° to +60°C/-4° to 140°F
Azimuth accuracy
Typical positional accuracy
Inclination accuracy
Tool face accuracy
Azimuth range
Inclination range
-90°− +90°
Survey speed, up to
100 m/min
Effected by magnetics
6h 40min
Data communication
Battery type
1x CR 123a
Battery capacity, continuous use
24 hours
*Calibrated for temperature range -10C to +60C

Handheld device

Android Smartphone
DeviGyro App
Battery capacity, continuous use
15 hours
Battery type
IP rating

DeviGyro OX MINI

Compact overshot surveying solution for B and N-size 


Diamond Core Drilling (B and N-size only), Continuous surveying, Single & Multi-shot surveying, Wireline or pump down

The DeviGyro OX Mini is a purpose-built overshot surveying solution for B-size diamond core drilling applications. Enabling precise, high-speed, continuous surveying while retrieving the core tube, effectively integrating surveying into the drilling process, and maximizing the available drilling time in a shift.

Learn more
DeviGyro OX Mini illustration

DeviGyro RG30 HELIX

Survey solution for small diameter in-rod surveying 


In-rod surveying, Slim-rod RC, Small diameter Civil Drilling Applications, Diamond Core Drilling: A and B-size only, Wireline, Pump down or Conventional, Pilot holes

The DeviGyro RG30 Helix is designed for small diameter in-rod surveying, with a 30mm body and adaptable centralizers making it particularly suitable for drilling applications such as slim-rod RC. Providing all the benefits which the innovative DeviGyro technology has to offer, the DeviGyro RG30 Helix is simply the latest purpose-built running gear configuration in the DeviGyro range.

Learn more
DeviGyro RG30 Helix illustration


Multipurpose survey solution for slim drill hole applications 


Drill and Blast, Injection holes, Grout holes, Pilot holes, Jet grouting, Canopy Tubes

The DeviGyro RG30 Slimline is a multipurpose survey solution for slim drill hole applications. Surveying a large cluster of drill holes to learn their accurate path is an important, but often time-consuming process. However, this changes with the DeviGyro RG30 Slimline. With its lightweight, slim and robust design it is the ideal solution for challenging survey applications like blast & injection holes.

Learn more
DeviGyro RG30 Slimline illustration


Ultra-versatile survey solution for most types of in-rod applications 


Diamond Core Drilling: Wireline, Pump down or Conventional, RC Drilling, Civil Drilling Applications, Geotechnical Drilling, Directional Drilling, Pilot holes, Piling

The DeviGyro RG40 Standard is an ultra-versatile survey solution covering a wide range of surveying applications. The assembly offers efficient, continuous or multishot surveying for core drilling, reverse circulation, piling, and most other in-rod surveying applications.

Learn more
DeviGyro RG40 Standard illustration


Compact overshot surveying solution 


Diamond Core Drilling, Continuous surveying, Multi-shot surveying, Mining, Civil

The DeviGyro Overshot Xpress (the OX) is a purpose-built overshot survey solution for the diamond core drilling application. Enabling continuous gyro surveying up to 100m/min whilst retrieving the core tube, minimizing the impact on drilling productivity. The compact 1.2m design improves operator handling, making it a safer option compared to conventional overshot survey systems. Precise, quick, and strong as an ox, the DeviGyro Overshot Xpress is the drillers choice for maximizing bit-on-face time while controlling deviation.

Learn more
DeviGyro Overshot Xpress illustration

The DeviGyro is a miniature, non-magnetic, and versatile surveying instrument suited for a wide range of drilling applications across the mining exploration, mining production & development and civil construction industries. With easy operation and an attractive price point, the DeviGyro is resetting the standard for borehole surveying systems.

Incorporating cutting-edge gyroscope technology and proprietary navigational algorithms, the DeviGyro precisely detects and quantifies any deviation the instrument is subjected to as it traverses the drill hole. Providing highly accurate, repeatable data at any angle.

The DeviGyro comes equipped with a rugged handheld device and is operated by an innovative user-friendly Android application. The communication between the instrument and the handheld device is wireless and functions through the pressure barrel, made possible by Devico’s patented antenna technology.

Requiring minimal pre-survey set up time and capable of recording up to 10 samples a second at survey speeds of up to 100m/min, the DeviGyro is one of the most efficient survey instruments available on the market, taking the term user-friendly to new level.

As our customers have come to expect with all Devico survey products, survey quality is at the forefront with the DeviGyro system. At the completion of each survey all data is passed through an automatic, stringent, at-rig QA/QC process with a comprehensive pass/fail criteria, quickly providing the operator with full awareness of the survey results, and drill hole position. Equipped for the next step in the drilling process.

The DeviGyro is available in a leading range of interchangeable, purpose-built and durable running gear configurations, which are specifically suited to a wide range of survey applications.


  • Quick set up time
  • Repeatable precision at any angle
  • High speed, continuous surveying (up to 100m/min)
  • Ultra-versatile, suited to a wide range of applications
  • User-friendly, intuitive operating software
  • Automatic, instant At-Rig QA processing
  • Scandinavian made - Robust and reliable
  • Commercially available battery
  • Automatic Depth Estimation (ADE)
  • Not affected by magnetics
  • DeviCloud compatible
  • Automatic Depth Estimation (ADE)

Application areas

  • Diamond Core Drilling: Wireline, Pump down or Conventional
  • Reverse Circulation (RC) Drilling
  • Grout & injection holes
  • Geotechnical Drilling
  • Directional Drilling
  • Production Drilling
  • Drill & Blast
  • Raise Bore
  • Pilot holes
  • Piling
  • In-rod & Open hole

Australian Underground Drilling about the OX

Australian Underground Drilling about the OX
The OX technology is fantastic! Comprehensive surveying without interrupting the drilling process, driving overall production up and the cost per meter down for our clients.
Geoff Muir
Managing Director

Request quote

Frequently asked questions about DeviGyro

Is the DeviGyro RG40 Standard North Seeking?

No, the DeviGyro is not north seeking. It is a high precision, continuous rate gyro using north seeking principles and proprietary algorithms to determine the drill hole path from a known direction. Most continuous north seeking gyros operate in the same way. They determine a start direction and then measure the “rate“ of change from the initial reference.

See answer

What is the maximum operating speed for the DeviGyro?

Although the DeviGyro has been successfully tested at speeds of 180m/min, the maximum recommended operating speed is
100 m/min.

See answer

How long does it take to survey a 100m drill hole with the DeviGyro?

Assuming a moderate average survey speed of approx. 60m/min, a 100m survey takes about 4 minutes. In addition, if you are conducting core drilling and running the OX assembly surveying becomes part of the drilling cycle and therefore survey time does not interrupt drilling productivity.

See answer

Can the DeviGyro be used without the DeviCounter?

Yes, it can. In that case you have to take stationary readings at specified depths. Whenever possible, however, continuous surveys are recommended. They give better accuracy because they have the benefit of precise depth information from the DeviCounter.

See answer

Didn't find what you were looking for? Go to FAQ-page