eFit Scanning an Ear

eFit Scanner Graphical User Interface


Hand-Held Scanning Operation

For the operator the process is similar to painting the ear canal and pinna with light. The scanner operates at 15 frames per second, with each section of scan data captured in 0.01 seconds - fast enough that any head movement or hand jitter is automatically captured and resolved by the scanner.

Training Procedure

Users can be trained during a single training course. Performance is tested for proficiency on rubber ears, then human ears before training is completed.

Automatic Cradle Validation

Every scan is accurate, every time. The scanning system performs a self-validation before allowing the user to proceed with a scan.


The scanner has a volumetric accuracy of +/-90μm. For perspective, both a human hair and a sheet of paper are about 100μm thick. That means if you laid a sheet of paper on a flat table, we could tell you the thickness of the paper. See our case studies enclosed.

Real-Time Feedback

The operator is presented with a real-time view of the collected scan data. During a scan, and before the customer leaves, the operator is automatically presented with scan completeness. The operator has the opportunity to review and add to the scan at any time if necessary.

Scan Speed

A complete scan can be as quick as 90 seconds per ear.

Three Scanning Systems = Easy Ear Scans

United Sciences created three laser-scanning modes, which enables the user to quickly capture every important surface of the entire ear. Scanning the ear is as easy as A, B, C.

A: Industry Leading 3D Tracking – The eFit scanner’s tracking system was purpose-built for ear scanning, achieving unmatched accuracy, resolution, speed, working range, working angle, and mobility.

B: Ring Scanner – A live view of the ear canal is used to guide the user through a complete ear canal scan using a ring of blue light at the tip of the device probe.

C: Line Scanner – A line of laser light is projected from the scanner and is used to capture a majority of the outside of the ear, quickly and easily.

Safety – eFit allows the user to capture the true dimensions of the ear, eliminating silicone blowby risks.

Non-Contact – The scanning data is acquired with a non-contact laser scanning system.

Video Otoscope – The operator is presented with a real-time view of the ear and ear canal, which is used by the operator to obtain a safe and complete scan.

Depth gauge – The eFit scanware provides real-time estimated tip location and depth information to the operator, as well as a configurable depth target, warning message, and alarm.

Sample Data

Drag mouse to rotate

Download a scan of a left ear

Download a scan of a right ear

Buy eFit Scanner

eFit Scanner
Now available for purchase
To find out if you qualify to purchase an eFit scanner contact United Sciences at:
or by emailing:

Thank you for the interest in eFit Scanner. Please be sure to include the following information:
Your Name
Your Company Name
Where your company is located and where you intend to use eFit Scanner
What industry you are from and how you intend to use eFit Scanner


Scanner Specifications
Sensor 3 CMOS Digital Image Sensors
Frame rate 15 frames/sec
Input Power 5V USB 3.0, Max. 900mA each
USB Plug USB 3.0, Type A
Output signals USB 3.0
EMC EN 55011, EN 61000-3-2, EN 6100-3-3
Class 2 Laser Product EN 60825
LED Photobiological Safety EN 62471
Storage Temperature -20°C to +60°C (-4°F to +140°F)
Operating Environment Temperature +10°C to +30°C (+50°F to +86°F)
Air Humidity 30% to 75%, non-condensing
Air Pressure 600 hPa to 1060 hPa
Accuracy 90μ Volumetric Accuracy (0.09mm)

United Sciences
2277 Peachtree Rd
Suite D
Atlanta, GA 30309
Detailed Specifications
Guidance and manufacturer's declaration - electromagnetic emissions for all equipment and systems
eFit is intended for use in the electromagnetic environment specified below. The user of eFit should ensure that it is used in such an environment.
Emissions testComplianceElectromagnetic environment - guidance
RF emissions CISPR 11Group 1eFit uses RF energy only for its internal function. Therefore, its RF emissions are very low and are not likely to cause any interference in nearby electronic equipment.
RF emissions CISPR 11Class A
Harmonic emissions IEC 61000-3-2Not applicable
Voltage fluctuations/flicker emissions IEC 61000-3-3Not applicable
eFit is suitable for use in all establishments other than domestic and those directly connected to the public low-voltage power supply network that supplies buildings used for domestic purposes.