39DL PLUS Ultrasonic Thickness Gauge

With world-class ultrasonic capability, fast scanning speeds up to a 60 Hz update rate, and fully integrated wireless connectivity, our flagship handheld thickness gauge delivers results you can trust in a seamless workflow.
  • Connected: Integrated Wi-Fi®, Bluetooth®, USB, RS-232, and a removable microSD card*
  • Fast: Scan for minimal thickness areas at a 2 times faster display update rate**
  • Versatile: Tackle multiple thickness applications with our full line of dual and single element transducers
*Wi-Fi® and Bluetooth® are pending certification in some regions. Contact your local Evident representative for details on their availability.
**Up to 60 Hz versus 30 Hz on the predecessor model and comparable handheld thickness gauges.

Affordable Part Scanning
With breakthrough scanning speeds, the 39DL PLUS instrument offers an industry-leading* 60 Hz update rate for handheld thickness gauges.
  • Works as an affordable alternative for inspection codes that require a 60 Hz display update rate for scanning; get the scanning speed of a flaw detector with the ease of use of a thickness gauge
  • Find thin spots more easily when scanning for minimal thickness areas on pipes and other assets affected by corrosion
*As of June 2024.

One Thickness Gauge for Multiple Applications
Take advantage of powerful measurement features and a suite of application-specific software options for your current and future requirements.
  • Wide thickness range: 0.08 mm (0.003 in.) to 635 mm (25 in.) depending on material and transducer selection
  • Corrosion thickness gauging with dual element transducers
  • High Resolution software option of 0.001 mm or 0.0001 in. with single element transducers from 2.25 MHz to 30 MHz
  • THRU-COAT™ technology and echo-to-echo measurements to measure through painted and coated surfaces
  • Internal Oxide/Scale software option for boiler tube and internal oxide measurements
  • Multilayer software option to measure up to four layers simultaneously
  • High Penetration software option for attenuating materials such as fiberglass, rubber, and thick castings
  • Standard resolution: 0.01 mm or 0.001 in. for all transducers
  • Thickness, velocity, and time-of-flight measurements
  • Differential mode and reduction rate mode to track thickness variation and its percentage from a preset value
  • Time-based B-scan mode: 10,000 reviewable readings per scan
  • High Dynamic Gain technology with digital filters optimizes the starting gain setting based on calibration
  • V-Path Builder for custom V-path compensation in corrosion applications
  • Designed for EN15317 compliance
  • Compatible with all probes and accessories supported on the predecessor model

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