{"product_id":"spi-cms160713021-electronic-drop-indicator-1-in-digital","title":"Spi CMS160713021 Electronic Drop Indicator 1 in Digital","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI CMS160713021 is a digital electronic drop indicator designed for precision measurement in machining, tooling, and quality control applications. It features a 1-inch maximum measuring range with a resolution of 0.0005 inches and an accuracy of 0.0012 inches, making it suitable for demanding inspection tasks. The digital display provides clear readouts in both inch and metric units. The center lug flat back mounting style allows secure installation on standard indicator stands, magnetic bases, and transfer gages. This instrument is powered by a CR2032 battery and includes a NIST Traceability Certification, supporting use in regulated calibration environments. Licensed machinists, toolmakers, and quality technicians are the primary users.\u003c\/p\u003e\n\u003cp\u003eThe SPI CMS160713021 is used in machine shops, production floors, and inspection labs where accurate surface and runout measurements are required. Its center lug flat back configuration is a standard fitment for drop indicator holders on surface plates, dial test setups, and CNC machine probing fixtures. The 3\/8-inch stem diameter fits the majority of common indicator holders and clamp-style arms. The dual-unit display supports workflows that require switching between inch and metric measurements without recalculating. This indicator is appropriate for both setup verification and in-process quality checks on light to medium precision work.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eDigital display with 0.0005-inch resolution and 0.0012-inch accuracy\u003c\/li\u003e\n  \u003cli\u003eMeasuring range: 0.00 to 1.0000 inches (0.00 to 25.00 mm)\u003c\/li\u003e\n  \u003cli\u003eCenter lug flat back for compatibility with standard indicator mounting hardware\u003c\/li\u003e\n  \u003cli\u003e3\/8-inch stem diameter fits most indicator arms and holders\u003c\/li\u003e\n  \u003cli\u003eSwitchable inch and metric display modes\u003c\/li\u003e\n  \u003cli\u003eCR2032 battery powered with NIST Traceability Certification included\u003c\/li\u003e\n  \u003cli\u003eMeasuring force of 1.50 N for use on sensitive workpieces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with standard indicator stands, magnetic bases, and clamp-style arms that accept a 3\/8-inch stem diameter drop indicator with a center lug flat back mounting configuration.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by machinists, toolmakers, or metrology technicians familiar with precision measurement equipment. Secure the 3\/8-inch stem in the indicator holder before zeroing the instrument. Avoid lateral loading on the spindle during measurement, as side forces can affect accuracy and damage the mechanism. Handle the indicator carefully and store it in its case when not in use to protect the spindle and display.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Measuring Range (Inch)\u003c\/strong\u003e: 1.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Measuring Range (mm)\u003c\/strong\u003e: 25.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Measurement\u003c\/strong\u003e: 0.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccuracy (Decimal Inch)\u003c\/strong\u003e: 0.0012 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccuracy (mm)\u003c\/strong\u003e: 0.0200 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResolution (Decimal Inch)\u003c\/strong\u003e: 0.0005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResolution (mm)\u003c\/strong\u003e: 0.0100 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasuring Force\u003c\/strong\u003e: 1.50 N\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisplay Type\u003c\/strong\u003e: Digital\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Inch and Metric\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStem Diameter\u003c\/strong\u003e: 3\/8 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBack Type\u003c\/strong\u003e: Center Lug Flat\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery Size\u003c\/strong\u003e: CR2032\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTraceability Certification\u003c\/strong\u003e: NIST\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 7.8 inches x 4.7 inches x 1.96 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.8 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: CMS160713021\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51710279975218,"sku":"CMS160713021","price":203.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/29e1d6eb8b361f846f9ba67250fa2325.jpg?v=1788465124","url":"https:\/\/voomisupply.com\/products\/spi-cms160713021-electronic-drop-indicator-1-in-digital","provider":"Voomi Supply","version":"1.0","type":"link"}