Sensors and Apps
LEVEL Motion makes wearable motion sensors and the software that records them. A recording setup has three parts:
- LEVEL Inez sensors, worn on the body.
- A way to receive their data: your phone’s own Bluetooth, or the LEVEL Hub USB receiver for larger setups.
- An app that records everything to plain files: LEVEL Collector today, with LEVEL Mobility in development.
LEVEL Inez - the sensor
A small wearable motion sensor that clips or straps onto the body.
| Feature | Specification |
|---|---|
| Motion sensing | 6-axis: 3-axis accelerometer (±16 g) and 3-axis gyroscope (±2000 deg/s) |
| Size and weight | 37.8 × 40.2 × 10.9 mm, 13 g |
| Sensors per recording | up to 3 at 100 Hz over a phone’s own Bluetooth; up to 7 at 100 Hz through LEVEL Hub |
| Sampling rate | set per recording; 50, 100 and 200 Hz |
| Wireless | Bluetooth 5 (Low Energy) |
| Battery | 36 hours of continuous streaming at 100 Hz |
| Charging | USB-C |
| Other features | one multi-colour LED; programmable button to log events |
| Time sync | LEVEL Hub beacon clock ensures all sensors maintain under 5 ms drift of each other |
| Firmware | updated over Bluetooth (see Updating firmware) |
| File format | CSV |
| Certifications | radio module: CE, FCC, ISED, RCM, TELEC, SAR evaluated; full product-level FCC/ISED in progress, CE pending |
LEVEL Hub - the USB receiver
A small USB-C receiver that collects data from several sensors at once and hands it to the phone or computer over USB. Use it when you need more sensors than the phone’s Bluetooth handles comfortably, or when recording on a PC.
| Feature | Specification |
|---|---|
| Connects to | an Android phone (USB-C) or a Windows PC (USB) |
| Sensors per Hub | up to 7 sensors at 100 Hz |
| Without a Hub | a phone’s own Bluetooth handles up to 3 sensors at 100 Hz |
LEVEL Collector - the research app
The research app that records several LEVEL Inez sensors at once, together with other devices, all on one clock, as plain documented CSV files you can open in any tool.
- On an Android phone (Android 12 or later): records sensors over the phone’s Bluetooth or a LEVEL Hub, plus the phone’s own GPS, barometer and step counter. On the phone the app is labelled LEVEL Sensor. See Collecting data and Sharing recorded data.
- On a Windows PC (the desktop recorder): records sensors over a LEVEL Hub and coordinates lab systems such as Vicon motion capture and Sony cameras.
LEVEL Mobility - the gait app (in development)
A clinical app that turns sensor recordings into gait and mobility results for standard tests, such as timed walks and the Timed Up and Go. LEVEL Mobility is in development and not yet available.
Works with
| Device or system | What it adds | Phone | Desktop |
|---|---|---|---|
| Polar H10 chest strap | heart rate, RR intervals, ECG, chest motion | yes | yes |
| Phone sensors | GPS, barometer, step counter | yes | - |
| Vicon motion capture | start/stop trigger and frame count to line the recordings up | - | yes |
| Sony RX0 II cameras with Theia markerless tracking | timecode so video and sensor data line up | - | yes |
How each one lines up with the sensor data, and any fixed offsets to remove, is on Syncing with other systems.
Contact
For sales and partnerships, see lvlmotion.com or email info@lvlmotion.com