Spi 31-038-3 Digital Combination Protractor Inclinometer

Product Description

The SPI 31-038-3 is a digital combination protractor and inclinometer designed for precision angle measurement in trade and industrial applications. It reads across a full 360-degree angle range with a resolution of 0.10 degrees, giving technicians a reliable tool for checking level, plumb, and angular position on equipment, ductwork, pipe runs, and structural components. Accuracy is rated at 0.10 degrees for level and plumb readings, with a maximum error of 0.20 degrees. The digital display eliminates the guesswork of analog graduation reading, making it a dependable choice for HVAC, plumbing, electrical, and general mechanical work.

This inclinometer suits residential and light commercial service work where precise angle verification is required. Common applications include setting equipment pitch, verifying drain slope on DWV piping, aligning fan and motor assemblies, and checking conduit or duct runs for proper grade. The digital format is well suited for technicians who need quick, repeatable readings without interpreting a traditional bubble or analog scale.

Key Features

• 360-degree full-circle angle measurement range covering four 90-degree quadrants
• 0.10-degree resolution for fine angle discrimination
• 0.10-degree accuracy for level and plumb; 0.20-degree maximum error
• Digital readout eliminates analog interpretation error
• Combination protractor and inclinometer function in a single instrument

Compatibility

Designed as a general-purpose digital angle measurement instrument suitable for use in HVAC, plumbing, electrical, and mechanical trade applications where angular or incline readings are required.

Installation Notes

This is a handheld measurement instrument, not an installed component. No wiring or mounting is required for standard use. Keep the reference surface clean and free of debris before taking readings to ensure accurate results. Handle with care to avoid dropping, as impact can affect instrument calibration.