TesTex Scout CUI Detection System

TesTex Scout CUI Detection System

Corrosion Under Insulation Detection System

TesTex Scout
Corrosion Under Insulation (CUI) Detection System

TesTex has developed an innovative system for the detection of Corrosion Under Insulation (CUI) using the proprietary Off-Surface-Electromagnetic-Technique (OSET).

The "Scout" system allows you to pinpoint the areas that require attention, instead of needlessly stripping insulation or doing random thickness checks.


  • One or two-man operation
  • Portable all-in-one electronics with 10.1" (257 mm) sunlight readable touch screenscout-system
  • AC or DC power
  • A true scanning technique with high throughput
  • Lightweight scanner design that fits most piping, vessels and tanks (starting at 2" (50.8 mm) diameter piping and ranging up to flat surfaces).
  • Scans through stainless steel and aluminum cladding with insulation thicknesses up to 4" (102 mm)
  • Type of insulation (calcium, silicate, mineral wool, fiberglass, etc...) has no effect on signal response. The presence of moisture within the insulation also has no effect.
  • Detects surface corrosion (wall loss, pitting) on piping of any wall thickness and large are ID corrosion on schedule 40 piping.
  • Can locate butt welds
  • Encoded data with mapping option
  • Multiple wheel sets and quick release pins on the axles allows the versatility of using only one scanner for your inspection needs.
  • Water Resistant
  • Circumferential scanning technique on cladding overlaps to eliminate reduced sensitivity / dead zones.
  • Positioning device displaying circumferential position and reference angle to assure straight scans and angular position of the next scan.

Detection Capabilities

Cladding Material Insulation Thicknesss
Wall Loss Detection Pit Detection* Weld Detection
Stainless Steel
Up to 4"
Up to 3"
Up to 3"
Up to 2"
Up to 4"
Up to 3"

*30% Surface Depth, 1" (25.4 mm) Diameter Pit Detection


Instrument Specifications

  • Dimensions: 12" x 8" x 3" (305 x 203 x 76 mm)
  • Weight: 7.6 lbs. (3.5 kg)
  • Display: 10.1" (257 mm) Capacitive, 10 point multi-touch input, Anti-reflective coating, sunlight readable, chemically strengthened tempered glass cover and optically bonded LCD and touch screen.
  • Connectivity: USB 2.0 Gigabyte Ethernet
  • Power: 100 - 240VAC, 47 - 63Hz
    1.5 - 0.6A, or 14.8VDC 10Ah Lithium Polymer (5 hour charge life)
  • Frequency Range: 5 to 40 Hz
  • Channels: 2 channels (1 Absolute, 1 differential)

Scanner Specification

  • Technique: Off Surface Electromagnetic Technique (OSET)
  • Dimensions: 5.5" x 2.5" x 8.3" (140 x 64 x 211 mm)
  • Weight: 5.2 lbs. (2.36 kg)
  • Cable: 10 ft. (3.05 m) and 25 ft. (7.62 m) standard with 12 pin right angle lemo connectors, longer cables are available upon request.
  • Encoders: Quadrature linear encoder and 6 axis positioning encoder
  • Wheels: Polyurethane with 95A durometer, extra durable for a much longer life
  • Coverage: 3" (76.2 mm) wide scanning path

OSET Scanner Performing a Linear Scan
OSET Scanner Performing a Circumferential Overlap Scan


  • Mapping Software
  • Extra batteries / chargers
  • 75 ft. (23 m) extender cable
  • Specialty calibration pipes with specified defects (a standard pit calibration pipe and a welded calibration pipe is included with system purchase).
Description Part # Saved Price Select Option Add to
TesTex Scout Corrosion Under Insulation Detection System CUI-TET-SCOUT Request Pricing