| Register Number (Decimal) | Address (Hexadecimal) | Register Description | Data Format | Notes |
|---|---|---|---|---|
| 2049 | 0800hex | Device status | 16-bit |
0 = Status OK. 1 = Critical error. 2 = Error. 4 = Warning. |
| 2050 | 0801hex | CO2 status | 16-bit |
0 = Status OK. 2 = CO2 reading not reliable. Appears during transmitter start-up. 256 = Measurement not ready. Appears during transmitter start-up. |
| Multiple statuses can be present simultaneously. In those cases, the value of the status register is the sum of the status values. For example, the value of the device status register is 6 if a warning (4) and an error (2) are present simultaneously. |