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The optimal choice for weld inspection on ferrous surfaces

Track welds circumferentially or longitudinally with up to 6 probes. Follow welds with the steerable, remote-operated NAVIC - Weld Scanner, equipped with magnetic wheels, allowing vertical and inverted weld inspection to be performed easily. Various probe holder frames expand the weld scanning possibilities. From low-profile for restricted access to spiral welds and long seam inspection, the NAVIC is the industry leader in non-destructive testing for weld inspection.

Customer Photos

Photo Credit: Nortech
Six probe weld tracking
Photo Credit: Nucleom

Photo Credit: KPG in Malaysia

Photo Credit: Nucleom

Photo Credit: Nucleom
Single Pod NAVIC performing weld inspection



Motorized Driving and Steering

Variable drive speed and steering give the user precise control during weld inspection.


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

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

The intuitive handheld remote control allows you to program drive paths from up to 30 m (100 ft) away. The ergonomic handheld controller includes drive paths and system diagnostics.

Battery Power

Order the NAVIC with the battery kit and avoid using heavy, cumbersome generators. These rechargeable batteries can power the NAVIC system and accessories for hours.

Many Accessories

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


Products are engineered and designed to perform flawlessly. Our products feature a limited warranty for three years.

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

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

The power controller connects the user instrument and handheld controller to the base crawler and is compatible with North American and European power sources.


The umbilical connects the crawler and the base crawler, providing communication and power between the components.

Handheld Controller

The handheld controller joysticks contain the NAVIC operating system and control the speed and steering of the base crawler. At the same time, 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


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


Radial Clearance, Pipes under 20 cm (8 in): 7 cm (2.75 in)4
Radial Clearance, 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, water-tight (not submersible)
Maximum Inspection Surface Temperature: 150°C (302°F)8


Minimum Wedge Width: 17.1 mm (0.7 in)
Maximum Wedge Width: 57.6 mm (2.3 in)9


Minimum Wedge Width: 17.1 mm (0.7 in)
Maximum Wedge Width: 45 mm (1.8 in)9


Standard Yoke
Minimum Wedge Width:
 17.4 mm (0.69 in)
Maximum Wedge Width: 55 mm (2.17 in)
Standard Length:
 63.5 mm (2.5 in)

Wide Yoke
Minimum Wedge Width:
 17.4 mm (0.69 in)
Maximum Wedge Width: 93.8 mm (3.69 in)
Wide Length: 63.5 mm (2.5 in)

Probe Holder Pivot Buttons


Pivot Hole Size: 8.0 mm (0.315 in)
Wedge Type: Olympus PA
Hex Size: 9.53 mm (3/8 in)


Pivot Hole Size: 5.0 mm (0.197 in)
Wedge Type: Olympus TOFD, Olympus A27 DMA
Hex Size: 9.53 mm (3/8 in)


Pivot Hole Size: 2.7 mm (0.106 in)
Wedge Type: Sonatest DAAH PH
Hex Size: 9.53 mm (3/8 in)


Pivot Hole Size: 9.5 mm (0.375 in)
Hex Size: 11.1 mm (7/16 in)


Pivot Hole Size: 3.0 mm (0.118 in)
Hex Size: 9.53 mm (3/8 in)


Pivot Hole Size: 2.3 mm (0.09 in)
Hex Size: 9.53 mm (3/8 in)


Pivot Hole Size: Conical Head
Hex Size: 9.53 mm (3/8 in)


Pivot Hole Size: 5 mm (0.197 in)
Wedge Type: Internal Zetec PA/TOFD, Phoenix TOFD
Hex Size: 9.53 mm (3/8 in)


Pivot Hole Size: 5.6 mm (0.221 in)
Hex Size: 9.53 mm (3/8 in)

  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.
  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.
  9. Some arm styles may provide additional maximum wedge width. Contact Jireh Industries for details.
    Technical specifications are subject to change.


To download the user manuals and additional documentation for the scanner, click the appropriate link below. 

(specifications are subject to change)


From USD$ 38,687.99

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

Probe Holder Frame

From USD$ 3,766.99

Low Profile Probe Holder Frame

From USD$ 3,766.99

Low Profile Multi-probe Weld Inspection

The Low Profile Probe Holder Frame adds weld scanning capability to the NAVIC and SKOOT motorized scanners. The CXG004 frame uses (4) slip joint probe holders (2 Phased Array and 2 TOFD). The low-profile design of the frame allows for scanning on all diameters where radial clearance is limited.

Part ID: CXG004

Pivoting Probe Holder Frame

From USD$ 6,485.33

The Pivoting Probe Holder Frame adds longitudinal weld scanning capability to the NAVIC (> 12 in. OD) and SKOOT (> 30 in. OD) motorized scanners. The CXG013 carries (4) vertical probe holders (2 Phased Array and 2 TOFD). Combine the frame with a battery powered laser guide (sold separately) by adding the laser guide pivot mount to the order.

Part ID: CXG013-20

Vertical Probe Holder Frame

From USD$ 5,131.25

Add weld scanning capability to the automated NAVIC and SKOOT scanners. The configurable Vertical Probe Holder Frame - 4 probe uses four vertical probe holders (2 phased array and 2 TOFD) and is available in various frame bar lengths to perform intricate weld scanning on ferrous surfaces.

Part ID: CXG007

Automatic Weld Tracker

From USD$ 11,591.00

Add automatic weld following capability to NAVIC.

Start with the NAVIC. Add Laser guidance. Say "Hello" to the TRACKER.

Combine the NAVIC crawler with the Tracker, and transform the NAVIC into a laser-guided, automated scanning solution. Setup atop any probe holder frame, the Tracker uses advanced laser guidance to follow elevated profiles (i.e. a weld) on any ferrous scan surface. The list of features includes: simple controls which let the user start and stop the scanner as needed, tracking information is displayed on the handheld controller, setup is quick and easy.

Part ID: DRG001

Optical Guide

From USD$ 773.76

Optical guides come in various styles and provide a reference point for guiding scanners.

Battery Powered Optical Guide

USD$ 773.76

The Battery Powered Optical Guide provides a red colour point of reference useful for guiding scanners along a given path (i.e. a weld). The angle of projection may be adjusted to account for various scan surfaces and sizes. An included perpendicular dovetail mount ensures the battery powered optical guide is compatible with many manual and motorized scanners.

Part ID: CXS080

Optical Guide

USD$ 773.76

Easily mounted to any motorized crawler's dovetail, the Optical Guide provides a green colour point of reference for guiding scanners along a given path (i.e. a weld). The projection angle may be adjusted as required, and the plug-in power means never running out of battery.

Part ID: CXG035

Automated Crawler Medium Temperature Add-On Kit

From USD$ 1,609.48

Increase the maximum inspection surface temperature capabilities to 150°C (302°F).

Operate on surfaces up to 150°C (302°F)

The Automated Crawler Medium Temperature Add-On Kit includes an installation/removal mat and a 4.5 m (14.8 ft) cable management system which are designed for use beyond the standard 50°C (122°F). Combine this kit with any existing NAVIC or SKOOT system and operate with confidence on medium heat inspection surfaces up to a maximum temperature of 150°C (302°F).1

Part ID: CXG031

Irrigation Pump

From USD$ 2,545.26

Efficiently supply couplant fluid to the scanning surface.

The Motorized Couplant Pump is designed for use with the CMG007 and CMG009 irrigation kits. The motorized couplant pump is a powered pumping unit used for supplying couplant fluid to the scanning surface.


Part ID: CMA015

Pump/Umbilical Case

From USD$ 559.96

Keep your motorized couplant pump and essential umbilicals safe & sound.

Motorized Pump/Umbilical Case

USD$ 559.96

The Motorized Pump/Umbilical Case offers superior protection for a Motorized Couplant Pump as well as additional storage for umbilicals, cables, hoses and tubes.

Part ID: CMA016

Motorized Pump/Umbilical Case - Extra Large

USD$ 651.59

Premium, wheeled storage case

The Motorized Pump/Umbilical Case - Extra Large offers superior protection for a Motorized Couplant Pump and additional storage for umbilicals, cables, hoses and tubes. This wheeled case features a retractable handle and accommodates umbilicals up to 30 m (100 ft).

Part ID: CXA042

RECON - Fixed Camera

From USD$ 8,736.50

Fixed Camera Kit that brings high-resolution HD video to your crawler.

High Definition Visual Inspection

Bring video capabilities to the NAVIC with the RECON - Fixed Camera Kit. Monitor your crawler with real-time HD video, record inspections for later review, catalogue, and share notable clips. All this and more are made possible with the included RECON • Studio software.

Part ID: DWG001

Battery Kit

From USD$ 1,975.12

Lightweight, rechargeable lithium-ion batteries designed to provide total operational power for hours on a single charge.

No need for cumbersome, heavy generators any longer. The Battery Kit provides two rechargeable batteries for use with the SKOOTNAVIC or MOTIX system. The batteries fit into the power controller and will operate an automated crawler and attached components for hours at a time on a single charge*.

The included charger may be configured for various plug styles.

Part ID: DVG001