PosiTector SPG

The PosiTector SPG Surface Profile Gauge measures and records peak to valley surface profile heights. Conforms to ASTM D4417-B, AS 3894.5-C (with optional 30° tip angle), U.S. Navy NSI 009-32, SANS 5772 and others.


  • Fast measurement rate of over 50 readings per minute—ideal for quickly and accurately measuring large surfaces

  • NEW Larger 2.8″ impact resistant color touchscreen with redesigned keypad for quick menu navigation

  • NEW On-gauge help explains menu items at the touch of a button

  • RESET feature instantly restores factory settings


  • Alumina wear face and tungsten carbide tip for long life and continuous accuracy—field replaceable tips

  • NEW Weatherproof, dustproof, and water-resistant—IP65-rated enclosure

  • NEW Ergonomic design with durable rubberised grip

  • Rugged, indoor/outdoor instrument – ideal for field or shop use

  • Shock-absorbing protective rubber holster for added impact resistance

  • 2 year warranty on gauge body AND probe


  • Built-in temperature compensation ensures measurement accuracy

  • Certificate of Calibration showing traceability to NIST included

  • Glass Zero Plate and metal shim included

  • Conforms to national and international standards including ISO and ASTM


  • PosiTector body accepts all PosiTector SPG, RTR, 6000, 200, DPM, IRT, SST, SHD, BHI, and UTG probes easily converting from a surface profile gauge to a coating thickness gauge, dew point meter, soluble salt tester, hardness tester, or ultrasonic wall thickness gauge

  • 30º angle interchangeable probe tip available for special surface profile applications

  • Cabled probes available for blasted steel, textured coatings, and concrete profile

  • NEW Auto rotating display with Flip Lock

  • Selectable display languages

  • Mils/Microns switchable


  • Statistics mode continually displays/updates average, standard deviation, min/max, and number of readings while measuring

  • NEW Screen Capture—save 100 screen images for record keeping and review

  • HiLo alarm audibly and visibly alerts when measurements exceed user-specified limits

  • NEW Instant-on feature quickly powers up the gauge if recently powered down

  • NEW Up to 30% longer battery life

  • USB port for fast, simple connection to a PC and to supply continuous power. USB cable included

  • PosiSoft USB Drive—stored readings and graphs can be accessed using universal PC/Mac web browsers or file explorers. No software required.

  • Every stored measurement is date and time stamped

  • Includes PosiSoft Software for viewing and reporting data

  • Software Updates via web keep your gauge current

Find out more about the PosiTector 6000 and all the features that come with it


Find useful instruction manuals and quick guides for the PosiTector SPG Surface Profile Gauge


You will discover some really helpful frequently asked questions here and may find the answer to your query

PosiSoft Software

Learn about the DeFelsko PosiSoft software to assist with your coating thickness gauge


All the useful accessories to accompany your PosiTector SPG can be found here.
Surface Profile Gauge Prices

Surface Profile Gauge Prices

SPG Buying Options (inc VAT)

Hire Available

The PosiTector Surface Profile Gauge is available to hire. Please get in touch for more info.

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