Baseline Plastic Angle Rule Goniometer, 6 Inch, 360 Degree

The Baseline Plastic Angle Rule Goniometer features broad arms and a 360-degree head for accurate range-of-motion measurement in clinical and rehabilitation settings. The scale reads 0 to 180 degrees in each direction in 5-degree increments, and one arm includes a linear scale in both inches and centimeters for additional measurement versatility. The broad arm design provides a larger reference surface for improved alignment accuracy, particularly for larger joints or when measuring through clothing or dressings. The 6-inch arm length is well-suited for mid-size and smaller joint assessments.

Key Features

• Broad arms — larger reference surface for improved alignment accuracy
• 360-degree head — reads 0–180 degrees in each direction
• 5-degree increment scale for clear, practical ROM readings
• Linear scale on arm in inches and centimeters
• 6-inch arm length — suited for mid-size and smaller joint assessments
• Plastic construction — lightweight and easy to disinfect

Specifications

• Brand: Baseline
• SKU: 10044B
• UPC: 714905014700
• Arm length: 6 inches
• Head: 360 degrees (0–180 degrees in each direction)
• Scale increments: 5 degrees
• Linear scale: Inches and centimeters
• Arm style: Broad
• Material: Plastic
• Country of Origin: China

Ideal For

This angle rule goniometer is an excellent choice for physical therapists, occupational therapists, and athletic trainers who prefer a broad-arm design that provides a larger visual reference surface for joint alignment during ROM assessments. It is well-suited for educational and training settings where the wider arms make it easier for students to observe correct goniometer placement and alignment technique. The 5-degree increment scale makes it practical for routine clinical documentation where 1-degree precision is not required. Anyone looking for an affordable, easy-to-read plastic goniometer with broad arms for daily clinical or educational use will find the Baseline angle rule model a dependable and practical choice.

Frequently Asked Questions

What is the advantage of broad arms over standard narrow arms?
Broad arms provide a larger surface area along the length of the goniometer arm, making it easier to visually align the arm with the long axis of a limb segment during measurement. This can improve alignment accuracy, particularly for larger joints or when measuring through clothing, and makes the instrument easier to read and demonstrate in educational settings.

How does the 5-degree increment scale compare to a 1-degree scale?
A 5-degree increment scale is easier to read quickly and is sufficient for most routine clinical ROM documentation. A 1-degree scale provides finer resolution for situations where precise measurement is critical, such as research protocols or detailed outcome tracking. For standard clinical use, 5-degree increments are widely accepted and practical.

How does the 6-inch arm length compare to longer models?
The 6-inch arm is compact and well-suited for smaller and mid-size joint measurements. For large joints such as the hip or shoulder where longer arms improve alignment accuracy along the full length of the limb, an 8-inch or 12-inch model is generally preferred. Choose the arm length that best matches the joints you assess most frequently.

How do I clean the goniometer?
Wipe down with a damp cloth and mild disinfectant between patient uses, following your facility's infection control protocols. Avoid submerging the instrument or using harsh solvents that may damage the plastic. Store flat or in a protective case to prevent warping of the arms over time.