# CO2 Sensor Remote Device Configuration

URL: https://www.macnman.com/docs/lorawan/sensors-lorawan/co-sensor/macsync-lwt1-remote-configuration
Section: User Manual › Lorawan › Sensors Lorawan › Co Sensor

## Updating Device Heartbeat

#### Example payload (JSON): 

```json
{ 
"txTime": 60
}
```
**Use FPort = 06 & Times in seconds:**

<div class="faint-line"></div>

## Related Resources

- Datasheet: [MacSync LCO2 X1 LoRaWAN CO2 sensor datasheet](/product/lorawan/sensors/environmental-sensors/macsync-l-co2-xx-datasheet)
- Start of this manual: [CO2 Sensor Introduction](/lorawan/sensors-lorawan/co-sensor/macsynclco21_introduction)
- Setup shared by all sensors: [Common LoRaWAN sensor settings](/lorawan/sensors-lorawan/common-lorawan-settings/maya_configuration_led_status_common)
- Help: [Contact Macnman support](/help/help)