ErgoArmMeter vs Flicker Check

ErgoArmMeter is a professional inclinometer for measuring and recording arm elevation during work. It is shown by research that work with elevated arm may lead to shoulder/neck disorders. Ergonomists have been using inclinometers to measure arm elevation, which have a better precision compared to self-reports and observations of arm elevation. With ErgoArmMeter, arm elevation during work time can be measured easily and with low cost. ErgoArmMeter is validated that it has similar accuracy compared to other former validated inclinometers. How to use (also accessible in the app): Attach the phone using a sport armband on the upper arm, with the upper edge just below the deltoid muscle, then: 1. Start a measurement by clicking “+”, fill in a project name and a recording number and “Create” the trial. 2. Conduct calibration by leaning to the side, holding some weight (e.g. a 2 kg dumbbell) with a straight-arm, and click “Calibrate”, keep the posture for 2 seconds. 3. Click “Start” to start the measurement, time is shown, and the arm elevation angle is recorded. 4. Press “Stop” to end the measurement. To view the results, click on the trial name in the trial list. 5. Click “Share” to send the results and the whole data set via email. Notice: Since ErgoArmMeter uses accelerometer and gyroscope in the phone, it requires the phone remain unlocked to stay functioning. It is recommended that you change “Auto-Lock” function in your phone, via “Settings-General-AutoLock-Never”, and then use the phone to measure arm elevation as long as you need. ErgoArmMeter is designed be used in evaluating workplace before and after interventions. It can also be used for educational purpose. Together with other information about the work task, it can add valuable information for risk assessments of a certain work task.

Flicker Check helps you detect and understand hidden light flicker using your device’s camera. Many light sources flicker faster than the human eye can see, which may affect visual comfort, focus, and overall viewing experience. Flicker Check makes it easy to analyze lighting conditions and better understand the lights around you. Using real-time camera analysis, Flicker Check measures light behavior and presents clear, easy-to-read results. Simply point your camera at a light source to instantly view flicker information and visual feedback. Key Features Flicker Percentage See the flicker percentage of a light source to understand how stable or unstable it is. Higher percentages indicate stronger flicker, while lower percentages suggest more stable lighting. Flicker Frequency (Hz) View the detected flicker frequency in hertz (Hz). This helps you understand how often a light source fluctuates per second. Flicker Level Classification Lights are categorized as Low, Moderate, or High flicker, making results easy to understand at a glance without technical expertise. Waveform Visualization A live waveform displays how light intensity changes over time. This visual representation helps you see flicker patterns clearly and understand how consistent a light source really is. Camera-Based Measurement No extra hardware required. Flicker Check uses your device’s camera to analyze lighting in real time. Export Data Export your results for further review or record keeping: CSV export for detailed data analysis PDF export including waveform visuals and key measurements Who Is It For? Flicker Check is useful for: Individuals sensitive to lighting Users concerned about visual comfort Professionals testing indoor lighting Anyone curious about how stable their light sources are Whether you’re checking home lighting, office environments, or different bulbs, Flicker Check provides clear insights in seconds. Simple, Clear, and Informative Flicker Check is designed with a clean interface that makes complex lighting data easy to understand. Results update in real time, helping you quickly identify changes in lighting conditions. Important Notes: ***Flicker Check is an informational tool only and is not intended for medical diagnosis or treatment.***  Measurements may vary depending on device hardware and environmental conditions. Understand your lighting. See what your eyes can’t. Flicker Check makes hidden light flicker visible.