{"product_id":"spi-31-040-9-digital-combination-protractor-inclinometer","title":"Spi 31-040-9 Digital Combination Protractor Inclinometer","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 31-040-9 is a digital combination protractor and inclinometer designed for precise angle measurement in trade and industrial applications. It covers a full 360-degree measurement range with a resolution of 0.01 degrees, making it suitable for work that demands fine angular readings. Accuracy varies by range: 0.05 degrees at 0 to 10 degrees, 0.20 degrees at 10 to 80 degrees, and 0.10 degrees at 80 to 90 degrees. The unit weighs 1.5 pounds and supports data output for integration with logging equipment or digital readout systems. It ships as a single unit with no magnetic base.\u003c\/p\u003e\n\u003cp\u003eThis instrument is used by machinists, pipefitters, millwrights, and HVAC technicians who need verified angle readings during layout, alignment, or installation work. Typical applications include checking pipe slope, verifying equipment levelness, setting duct angles, and confirming structural or mechanical alignment. The digital display eliminates parallax error common with analog protractors and speeds up readings in tight or poorly lit work areas. It is equally suited to shop use and field service.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFull 360-degree angle measurement range with dual range support including a 90-degree mode\u003c\/li\u003e\n  \u003cli\u003e0.01-degree resolution for fine angular measurements\u003c\/li\u003e\n  \u003cli\u003eTiered accuracy: 0.05 degrees at 0 to 10 degrees, 0.10 degrees at 80 to 90 degrees, 0.20 degrees at 10 to 80 degrees\u003c\/li\u003e\n  \u003cli\u003eDigital display eliminates analog reading errors\u003c\/li\u003e\n  \u003cli\u003eData output port for connection to external logging or readout devices\u003c\/li\u003e\n  \u003cli\u003eLightweight at 1.5 pounds for portable field and bench use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose digital angle measuring instrument suitable for use with standard machining, pipefitting, HVAC, and mechanical alignment workflows where a precise protractor or inclinometer is required.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis instrument does not require installation in the traditional sense but should be handled and stored per manufacturer guidelines to protect the digital sensor and display. Zero the unit on a known flat reference surface before taking measurements. If using the data output feature, verify cable and interface compatibility with the receiving device before connecting. No permanent mounting or special tools are required for standard handheld use.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement Type\u003c\/strong\u003e: Digital Combination Protractor Inclinometer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAngle Range\u003c\/strong\u003e: 360 degrees (also supports 90-degree range mode)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResolution\u003c\/strong\u003e: 0.01 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccuracy\u003c\/strong\u003e: 0.05 degrees at 0 to 10 degrees; 0.20 degrees at 10 to 80 degrees; 0.10 degrees at 80 to 90 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eData Output\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMagnetic Base\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.5 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 31-040-9\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51722146054450,"sku":"31-040-9","price":313.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/95256f35bc514265cf7edbcda147eacd.jpg?v=1788586388","url":"https:\/\/voomisupply.com\/products\/spi-31-040-9-digital-combination-protractor-inclinometer","provider":"Voomi Supply","version":"1.0","type":"link"}