Celsium is a temperature monitoring app designed to work with the Celsium wearable body temperature sensor (thermometer). To measure temperature with the application you will need to purchase the Celsium sensor.

The app offers the following features:

Body temperature monitoring
- Worn under the arm, our sensor can be connected to the iOS device via Bluetooth LE.
- The sensor sends a body temperature reading to the app every 4s. You can see this on the readout dial.
- You can see charts of how your temperature changes over time in the mini-graph and the graph page.

Historical data
- If you are wearing the sensor while the app is not running, it will store up to 20 days of historical temperature readings. Next time you connect to the app, these readings will be uploaded.

Temperature limit warnings
- You can set upper and lower temperature limits and receive an audible warning when your temperature goes outside this range.

Medicines
- You can record when you take over-the-counter medication and see how it fits in with changes in your temperature.
- You can add reminders to take medication in the future.

Cloud synchronisation
- All your data is stored in the cloud, so you can use the app on a second device to monitor their temperature remotely.