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The industry-leading NAVIC is JIREH's most powerful, all-encompassing, weld and corrosion scanning solution.

The NAVIC 2 - Base Crawler is a modular, motorized, steerable scanner that carries various attachments for scanning and inspection applications. The list of possibilities is seemingly endless with this industry-leading crawler. The NAVIC can perform circumferential and longitudinal inspections on ferrous tanks, pipes, and vessels.

Part ID: CXG023

Customer Photos

A NAVIC crawler with 300 mm raster arm and a corrosion thickness probe holder.

Photo Credit: TORNGATS

Photo Credit: TORNGATS

Photo Credit: Allseas Engineering B.V.

Photo Credit: Allseas Engineering B.V.

Photo Credit: Nortech
Contact a JIREH sales specialist for custom solutions.
Photo Credit: RTD
Six probe weld tracking
Photo Credit: Nucleom
A NAVIC and raster arm with a long stroke vertical probe holder being used on a pressure vessel.
Photo Credit: Arilson Silva (
A unique scanning solution with the NAVIC. Contact JIREH for more information.

Photo Credit: KPG in Malaysia
Single Pod NAVIC performing Internal Scanning
Single Pod NAVIC performing weld inspection



Motorized Driving and Steering

Variable drive speed and steering control.


Designed to handle intense tasks and challenging environments (dust-tight, watertight).

Corrosion Mapping

Effortlessly perform corrosion mapping with a variety of automated raster arms.

Weld Scanning

Various probe holder frame configurations allow for carrying between 2 and 6 probes during weld inspection.


Increased capability with pod separation, multiple encoders, accessory mounts and a handheld controller.

Many Accessories

Enhance the NAVIC's capability with optional accessories: battery-powered optical guide, onboard camera, backpack, cable management, preamp and motorized couplant pump.

Magnetic Wheels

Magnetic wheels provide the foundation for scan operations on ferrous surfaces.

Low Profile Design

The NAVIC can circumnavigate pipes as small as 7 cm (2.75 in) OD while only requiring 7 cm (2.75 in) of radial clearance when low-profile scanning is needed.

Remote Control

Program scan and raster paths from up to 30 m (100 ft) away using the intuitive handheld remote control. The ergonomic handheld controller also includes drive paths, variable speed control, system diagnostics and more.


JIREH backs the NAVIC system with a limited 3-year warranty.

Kit Contents

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NAVIC base crawler


Power controller 
Power supply (North American, European or UK plugs available)
Umbilical, 5 m (15 ft), 10 m (30 ft), 15 m (50 ft) or 30 m (100 ft) lengths available
Handheld controller
Auxiliary cable, 6 m (20 ft)
Cable management, threaded mount (length dependent on umbilical length)
J300 encoder cable, 5 m (15 ft)
Installation/Removal mat
6 mm ID irrigation kit (7/16 in quick connect)
Lifting sling (safety tether)
User manual
Cap: NAVIC hinge cover
Rugged carrying cases (various types based on chosen accessories)  x2 – x3


3 mm hex driver
3 mm flat driver
Wrench for pivot button adjustment

Component Identification

Base Crawler

The powerful base crawler carries probe holder frames, raster arms and many accessories for weld and corrosion inspection.

Integrated encoder

A spring-loaded encoder maintains surface contact on all various scan surface diameters. 

Magnetic Wheels

Robust magnetic wheels ensure the crawler remains fixed to any ferrous surface.

Power Controller

Compatible with North American, European and UK power sources, the power controller connects the user instrument and handheld controller to the base crawler.


The backbone of communication between the power controller and the base crawler.

Handheld Controller

Containing the NAVIC operating system, the handheld controller joysticks control speed and steering of the base crawler while the intuitive touchscreen allows for more intricate raster path and drive programming.

Parts & Add-Ons


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Idler Encoder (Right Module): 13.78 counts/mm (349.9 counts/inch)
Motor Encoder (Left Module): 872.5 counts/mm (22162.8 counts/inch)
Crawler’s Vertical Payload: 10 kg (22 lb)1
Driving Speed: Variable 0 – 25 cm/sec (0 – 10 in/sec)
Power Requirements: 100-240VAC, 50/60Hz, 3.5 Amps
Umbilical Lengths: 5 m (15 ft), 10 m (30 ft), 15 m (50 ft) to 30 m (100 ft)2
Inspection Surface: Ferrous
Maximum Backpack payload: 1.36 kg (3 lb)3


Circumferential: 7 cm (2.75 in) to flat pipe
Internal Circumferential: 61 cm (24 in) to flat
Longitudinal: 30.5 cm (12 in) to flat


Pipes under 20 cm (8 in): 7 cm (2.75 in)4
Pipes over 20 cm (8 in): 8.15 cm (3.2 in)4


CE: European Union CE Declaration – Compliance with essential requirements and provisions of European Union directives.5
FCC: Compliance with Part 15 of FCC rules.5
Industry Canada: CAN ICES-3 (A)/NMB-3(A) – This class A digital apparatus complies with Canadian ICES-003.5
UKCA: United Kingdom Conformity Assessed – Compliance with relevant UK statutory requirements and legislation.5


Base Crawler Height (including handles): 12.5 cm (4.9 in)
Base Crawler Height (handles removed): 8.1 cm (3.2 in)
Base Crawler Width (Dual Pod): 28.2 cm (11.1 in)
Base Crawler Length: 30.8 cm (12.1 in)6
Base Crawler Width (Single Pod): 16.1 cm (6.3 in)
Base Crawler Weight: 7.7 kg (17 lb)7


Operating Environment: -20°C (-4°F) to 50°C (122°F)
Environmental Sealing: Dust-tight, watertight (not submersible)
Maximum Inspection Surface Temperature: 150°C (302°F)8

Power Cords

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Power Requirements

100-240VAC, 50/60Hz, 3.5 Amps

Plug Designation

North America
NEMA 5-15P



  1. Performance may vary with the surface type. Heavy payloads may require reduced speeds.
  2. Custom umbilical lengths are available.
  3. The backpack is not compatible with older-generation NAVIC crawlers.
  4. Handles removed.
  5. For a complete description of regulatory certifications, please contact Jireh Industries.
  6. The length of the unit includes umbilical strain relief.
  7. Crawler weight excludes umbilical.
  8. The automated crawler medium temperature add-on kit is required when the inspection surface temperature measures between 50°C (122°F) and 150°C (302°F).
    Duty cycling may be required if the ambient temperature is >25°C.
    Technical specifications are subject to change.