1. From the Menu, tap Remote Monitoring
2. Search for and select the Equipment where the CO₂ sensor is installed
3. Tap the CO₂ sensor to open its details
4. View the history data graph. Tap and hold at the beginning of the graph to see the first recorded date.
   • Use the Date Range Selector in the top right corner if needed

If the sensor was installed in the last 7-10 days:

1. Allow it to calibrate for at least 7-10 days
2. If you'd like to silence alerts during this time, proceed to Silence CO₂ Alerts During Calibration
   • If you'd prefer to leave alerts active, no further action is needed for now

If the sensor was installed more than 7-10 days ago, continue below to Investigate Persistent High Readings After Calibration

1. From the Menu, tap Remote Monitoring
2. Search for and select the Equipment where the CO₂ sensor is installed
3. Tap the CO₂ sensor to open its details
4. Scroll down and tap Delete Sensor
5. After the 7-10 day calibration period has passed, re-add the sensor to the Equipment to monitor readings and alerts from that point forward

1. Try relocating the sensor to a different area (e.g., front of house)
2. Wait a few days and monitor for changes

If readings still stay elevated after a few days: 

1. Ask if you have access to another CO₂ sensor or meter to compare values
   • If the second device shows a significant difference (>5%), your REM sensor may be faulty
   • If both devices show similar readings (<5%), there may be a CO₂ leak in your facility
2. If you do not have another way to test CO₂ levels, suspect a faulty sensor, or need help investigating further, submit a support ticket
   • Be sure to include any error messages or unusual readings observed, as well as a photo of the sensor's QR code