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Why is one sensor showing an alert for not working while the others are still functioning fine?

You have received an alert indicating that one of your sensors has stopped working, while the others remain functional. Common causes for a sensor to stop sending are:

  • The sensor cannot get in contact with the gateway due to the signal being disturbed/blocked
  • The sensor is too far away from the gateway

We recommend moving the gateway closer to the inactive sensor or, alternatively, you might even want to consider getting another gateway. 

It is also possible that the battery in that particular sensor has been depleted. This can be due to a variety of reasons, some of which are:

  1. Temperature and humidity anomalies - Look into the temperature and humidity history of the inactive sensor and see if there are any anomalies, for example, has the temperature been below 0°C and above 30°C for extended periods of time. Although our product is designed for outdoor use and can withstand varying temperatures, it's important to note that extreme conditions may impact battery life. 
  2. High transmission frequency - Review the transmission history of the sensor in question within the sensor data. If the sensor was set to transmit more often than every 60 minutes then that will significantly decrease battery life. 
  3. Signal strength - Examine the signal strength history and look for significant fluctuations. Furthermore, check for gaps in transmission and missing values, which indicate poor connection. This means the sensor was using a lot of power to try to connect to a gateway, which depleted the battery faster. 

Tips to extend sensor battery life:

  • Maintain Gateway Connectivity:
    • Place additional gateways in weak signal areas.
    • Avoid leaving sensors disconnected from a gateway for long periods.
  • Optimize Sensor Placement:
    • Rain: Avoid placing sensors directly exposed to rain.
    • Sun: Avoid direct sunlight, especially in dark plastic or metal containers to prevent overheating.
    • Cold: In winter, shelter sensors to prevent sub-zero temperatures.
  • Monitor for Inactivity:
    • Check inactive sensors for connectivity issues and add gateways if needed.
    • Consider rechecking gateway placement or storage if inactive periods align with e.g. prefabrication, storage etc.