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Defelsko PosiTector GLS Advanced Gloss Meter

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Price: £2,472.00
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Gloss Meter

The Defelsko PosiTector Advance Body GLS Gloss Meter 20°/60°/85°. The degree to which a surface reflects light in a specular—or mirror-like—manner is known as its gloss. It has a major impact on how glossy or lustrous an object seems, which in turn affects how appealing it is to the eye and how valuable people think it is. Specular reflections are produced on highly gloss surfaces when light is reflected at the angle of incidence.

Gloss is typically measured and reported in Gloss Units (G.U.), following standards such as ASTM D523 and ISO 2813. Additionally, certain gloss meters, like the PosiTector GLS, can measure Reflectance and Haze Index. Reflectance quantifies the amount of detected light versus the amount sent, expressed as a percentage. Haze, on the other hand, refers to the milky halo or bloom seen in reflective surfaces due to microscopic imperfections. The 'Haze Index' is determined by subtracting the 20° from the 60° specular gloss measurements, as per ASTM D4039. Given the diverse range of gloss values, different measurement angles are employed to provide optimal resolution across matte, semi, and glossy samples.


  • 20° (10 x 10 mm) 0 — 2,000 GU
  • 60° (10 x 20 mm) 0 — 1,000 GU
  • 85° (4 x 45 mm) 0 — 160 GU
  • Repeatability ±0.2 GU (≤100 GU), ±0.2% (>100 GU)
  • Reproducibility ±0.5 GU (≤100 GU), ±0.5% (>100 GU)
  • Gloss ±0.1 GU (≤100 GU), ±1 GU (>100 GU)
  • % Reflectance 0.1%
  • Haze ±0.1 (≤100), ±1 (>100)
  • Operating Conditions 0° to 45° C (32° to 113° F) - non-condensing
  • Probe Size 165 x 73 x 32 mm (6.5" x 2.875" x 1.25")
  • Probe Weight 555 g (19.6 oz.)
  • Advance Body
  • Storage of 250,000 readings in up to 1,000 batches and sub-batches
  • Prompted Batch Mode—create pre-defined batches with on-screen text and image prompts for each reading
  • 3 Scan Modes Normal / Statistics / Limited Count Average
  • WiFi & Bluetooth
  • PosiTector App or Third Party


  • 60+ readings per minute; 90+ readings per minute in enhanced FAST mode.
  • Quick inspection with no adjustments required for most applications.
  • 2.8" impact-resistant colour touchscreen with a redesigned keypad for easy navigation.
  • On-gage help feature explains menu items at the touch of a button.
  • Weatherproof, dustproof, and water-resistant with an IP65-rated enclosure.
  • Ergonomic design with a durable rubberized grip.
  • Wear-resistant probe tip and shock-absorbing rubber holster.
  • Certificate of Calibration included, showing traceability to NIST or PTB.
  • Built-in temperature compensation ensures measurement accuracy.
  • Hi-RES mode for increased resolution in precision applications.
  • Conforms to national and international standards (ISO and ASTM).
  • Multiple calibration adjustment options and selectable display languages.
  • Auto-rotating display with Flip Lock and extended cables for underwater or remote measuring.
  • Statistics mode displays/updates average, standard deviation, min/max, and the number of readings during measurement.
  • Screen Capture feature saves 100 screen images for record-keeping and review.
  • HiLo alarm audibly and visibly alerts when measurements exceed user-specified limits.
  • Instant-on feature for quick startup, and up to 30% longer battery life.
  • USB port for PC connection and continuous power supply, with software updates available via the web.
  • Every stored measurement is date and time stamped.

This comprehensive tool provides a user-friendly, durable, accurate, versatile, and powerful solution for various measuring needs.

Browse here for probes and body and probe kits.

Size: Advance Body GLS Gloss Meter 60° or 20°/ 60°/ 85°

*item is excluded from any discounts or promotions.

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