Device Health & Status
| Name | Field ID | Type | Size | Description |
EVENT | 127 | String | 255 | Stores shutdown type and reason. Starts with 'S:'. See Events documentation |
| BATT | 15 | integer | 1 | Stores 0 if the internal battery is in use or 1 if not. |
| RSSI | 17 | integer | 1 | Stores the modem RSSI (-1 to 99). |
| MDI_EXT_BATT_PRESENT | 18 | integer | 4 | 0 if unplugged, 1 if external voltage is present. |
| BATT_TEMP | 42 | integer | 4 | Internal battery temperature (°C). |
| CASE_TEMP | 43 | integer | 4 | Case temperature (°C). |
| BATT_VOLT | 59 | integer | 2 | Internal battery voltage (mV). |
| BATT_WARMUP | 62 | integer | 1 | Used when a resistor is wired to keep battery warm. |
| BATT_CHARGING | 63 | boolean | 1 | 1 if internal battery is charging, 0 if not. |
| MDI_EXT_BATT_LOW | 150 | boolean | 1 | Low external battery voltage status. |
| MDI_EXT_BATT_VOLTAGE | 151 | integer | 4 | Current external battery voltage in mV. |
| MDI_EXT_VOLT_SNAPSHOT | 1175 | string | 128 | Linear regression of external voltage over time. |
| MDI_CRANK_IGNITION | 1176 | boolean | 1 | Ignition detection based on crank voltage analysis. |
| MDI_VOLTAGE_HIGH | 1194 | boolean | 1 | Voltage state of car (true: high, false: low). |
| MDI_UNPLUG_DURATION | 1195 | integer | 32 | Device estimated unplug duration in seconds. |
| MDI_UNPLUG_TIMESTAMP | 1196 | integer | 32 | Device estimated unplug timestamp. |
| MDI_ENERGY_MODE | 1261 | string | 64 | Reports new energy mode (IDLE, SAFE, etc.) due to temp. |
| MDI_UNPLUG_SPORADIC | 1274 | boolean | 1 | Boolean indicating sporadic unplugs. |
| MDI_REPLUG_TIMESTAMP | 1275 | integer | 32 | Device estimated replug timestamp. |
| MDI_UNPLUG_COUNT | 1276 | integer | 32 | Number of unplugs in current notification. |
| MDI_DISTURBANCE_ALERT | 1585 | integer | 4 | Wake-up on movement without trip start (timestamp). |
| MDI_INTERNAL_BATT_LOW | 1754 | boolean | 1 | True if internal battery SoC is low. |
| MDI_RTC_WAKEUP | 1625 | string | 64 | Programmed epoch time for next RTC wakeup. |
MDI_DEVICE_ONBOARDED | 1624 | boolean | 1 | True when a device is onboarded. |