{"product_id":"ultrasonic-thickness-gauge-with-a-scan-tum-4dl","title":"Ultrasonic Thickness Gauge with A-Scan TUM-4DL","description":"\u003ch1\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003eThe TUM-4DL Ultrasonic Thickness Gauge is a high-precision non-destructive testing instrument designed for accurate material thickness measurement across metals and non-metals. Equipped with A-Scan waveform capability, it allows users to verify readings and detect internal corrosion, scaling, and defects that standard thickness gauges cannot identify.\u003c\/p\u003e\n\u003cp\u003eUsing dual measurement modes (Pulse-Echo and Echo-Echo), the UM-4DL can measure material thickness directly through coatings up to 2mm without surface preparation. This makes it ideal for inspections where removing paint or coatings is not practical.\u003c\/p\u003e\n\u003cp\u003eWith a wide measurement range of 0.6–508mm, high resolution of 0.01mm, and built-in data storage with USB connectivity, the UM-4DL is a reliable and efficient tool for maintenance teams, inspectors, and industrial applications.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhy A-Scan Matters\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003eUnlike standard thickness gauges that only display a numeric reading, the UM-4DL provides an A-Scan waveform snapshot, allowing users to visually verify measurements.\u003c\/p\u003e\n\u003cp\u003eThis is essential for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDetecting internal corrosion and scaling inside pipes\u003c\/li\u003e\n\u003cli\u003eIdentifying pitting vs uniform wall loss\u003c\/li\u003e\n\u003cli\u003eConfirming measurement accuracy on rough or coated surfaces\u003c\/li\u003e\n\u003cli\u003eDistinguishing between multiple echo signals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStandard gauges give you a number. A-Scan shows you what’s happening inside the material.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eA-Scan waveform snapshot for measurement verification\u003c\/li\u003e\n\u003cli\u003eThrough-coating measurement (up to 2mm coating)\u003c\/li\u003e\n\u003cli\u003eDual modes: Pulse-Echo (P-E) and Echo-Echo (E-E)\u003c\/li\u003e\n\u003cli\u003eHigh resolution: 0.01mm\u003c\/li\u003e\n\u003cli\u003eWide measuring range: 0.6–508mm\u003c\/li\u003e\n\u003cli\u003eBuilt-in data storage (up to 100,000 readings)\u003c\/li\u003e\n\u003cli\u003eUSB connectivity for data export\u003c\/li\u003e\n\u003cli\u003eAdjustable update rate (4Hz \/ 8Hz \/ 16Hz)\u003c\/li\u003e\n\u003cli\u003e2.4” color LCD display\u003c\/li\u003e\n\u003cli\u003eMulti-language interface\u003c\/li\u003e\n\u003cli\u003eAutomatic V-path correction\u003c\/li\u003e\n\u003cli\u003eMax\/Min capture and differential measurement modes\u003c\/li\u003e\n\u003cli\u003eStable performance in harsh environments (-10°C to 50°C)\u003c\/li\u003e\n\u003cli\u003eSimple operation with intuitive interface\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch1\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e UM-4DL\u003cbr\u003e\u003cstrong\u003eMeasuring Modes:\u003c\/strong\u003e P-E \/ E-E\u003cbr\u003e\u003cstrong\u003eMeasurement Range:\u003c\/strong\u003e 0.6 – 508 mm\u003cbr\u003e\u003cstrong\u003eResolution:\u003c\/strong\u003e 0.01 mm\u003cbr\u003e\u003cstrong\u003eThrough Coating:\u003c\/strong\u003e Up to 2 mm\u003cbr\u003e\u003cstrong\u003eDisplay:\u003c\/strong\u003e 2.4” Color LCD (320 × 240)\u003cbr\u003e\u003cstrong\u003eSound Velocity Range:\u003c\/strong\u003e 500 – 9999 m\/s\u003cbr\u003e\u003cstrong\u003eUpdate Rate:\u003c\/strong\u003e 4 \/ 8 \/ 16 Hz\u003cbr\u003e\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -10°C to +50°C\u003cbr\u003e\u003cstrong\u003ePower Supply:\u003c\/strong\u003e 2 × AA batteries (approx. 24 hours)\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e 153 × 76 × 37 mm\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 280 g\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eModel Comparison\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUM-4DL:\u003c\/strong\u003e A-Scan snapshot, data logging, through coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUM-5DL:\u003c\/strong\u003e Real-time A-Scan + B-Scan, advanced signal control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch1\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eVariants\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003eProbe Type\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStandard Probe (General Use)\u003c\/li\u003e\n\u003cli\u003eSmall Tube Probe\u003c\/li\u003e\n\u003cli\u003eHigh Temperature Probe (Up to 480°C)\u003c\/li\u003e\n\u003cli\u003eCast Iron Probe\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch1\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eDelivery Scope\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eUM-4DL Thickness Gauge\u003c\/li\u003e\n\u003cli\u003eStandard Probe\u003c\/li\u003e\n\u003cli\u003eCouplant Gel\u003c\/li\u003e\n\u003cli\u003eCarry Case\u003c\/li\u003e\n\u003cli\u003eBatteries\u003c\/li\u003e\n\u003cli\u003eUser Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch1\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eIndustries Used In\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eOil and gas inspection\u003c\/li\u003e\n\u003cli\u003ePipeline maintenance\u003c\/li\u003e\n\u003cli\u003eManufacturing and fabrication\u003c\/li\u003e\n\u003cli\u003ePower generation\u003c\/li\u003e\n\u003cli\u003eMarine and shipbuilding\u003c\/li\u003e\n\u003cli\u003eAutomotive inspection\u003c\/li\u003e\n\u003cli\u003eInfrastructure and construction\u003c\/li\u003e\n\u003cli\u003eNon-destructive testing (NDT)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eDownloads\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0623\/8299\/7695\/files\/1699694831.pdf?v=1787042754\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cu\u003eDatasheet\u003c\/u\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Tomlin Instruments","offers":[{"title":"Without Calibration Certificate","offer_id":45645420822719,"sku":"TUM-4DL","price":31700.0,"currency_code":"ZAR","in_stock":true},{"title":"With Calibration Certificate","offer_id":45645420855487,"sku":"TUM-4DL-ICA","price":34700.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/8299\/7695\/files\/2b3db9c3-bc1e-445c-afb5-ede89c58aef5.jpg?v=1779069620","url":"https:\/\/inspectiontools.co.za\/products\/ultrasonic-thickness-gauge-with-a-scan-tum-4dl","provider":"Inspection Tool Specialists","version":"1.0","type":"link"}