DeviGyro RG40 Standard

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


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.

1500 mm / 59.1 in
40 mm
1.6 in
9.5 kg
20.9 lbs
Azimuth accuracy:
Typical positional accuracy:
Inclination accuracy:
Toolface accuracy:
*Calibrated for temperature range -10C to +60C
Pressure (bar/psi)
Temperature range
-20° to +60°C/-4° to 140°F
Compatible sizes
Centralizer range
45-100mm/1.8-3.9in ID
Azimuth accuracy
Typical positional accuracy
Inclination accuracy
Tool face accuracy
Azimuth range
Inclination range
-90°− +90°
Survey modes
Continuous or multishot
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

The DeviGyro RG40 Standard survey assembly is suited for most types of in-rod applications. It comes equipped with our patented adjustable centralizers which cover a wide range of rod diameters and profiles, while still supporting the high-speed continuous survey operation the DeviGyro has become known for.

As with all DeviGyro running gear configurations, due to Devico’s patented antenna technology, the communication between the DeviGyro RG40 Standard instrument and the handheld device is completely wireless and functions through the pressure barrel. Enabling quick activation, data transfer and download.

Designed with various drilling environments in mind, the DeviGyro RG40 Standard offers a user friendly, reliable, and robust survey assembly. Available in a compact or extended kit the DeviGyro RG40 Standard is easy to use, adapt, handle and transport from site to site. Making it the go-to solution for a wide range of drilling applications.


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

Application areas

  • Diamond Core Drilling: Wireline, Pump down or Conventional
  • Reverse Circulation (RC) Drilling
  • Civil Drilling Applications
  • Geotechnical Drilling
  • Directional Drilling
  • Pilot holes
  • Piling
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Frequently asked questions about DeviGyro RG40 STANDARD

What downhole survey tools do Devico have that are compatible with V-wall rods?

The DeviGyro RG40, DeviGyro Overshot Xpress and DeviShot products are available with V-wall compatible centralization.

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What downhole survey tools do Devico offer for diamond core drilling?

DeviGyro RG40, DeviGyro Overshot Xpress, DeviFlex RAPID and DeviShot.

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How long is the DeviGyro RG40 Standard when fully assembled?

Compact (without extension bars) 1.5m. Extended (with extension bars) 2.2m.

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Is the DeviGyro RG40 Standard compatible with V-Wall rods?

Yes, it is compatible with standard, V-Wall and W-Wall coring rods.

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What running gear is provided with a DeviGyro RG40 Standard kit?

A DeviGyro RG40 Standard Kit includes a DeviGyro Instrument Kit (Instrument and Android phone), an RG40 Running Gear kit (pressure barrel, centralizers, bull nose, swivel and spear head/wire adapter and 3 v-stands) and a DeviCounter Kit (DeviCounter, Clamp and Android phone).

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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.

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