Amazon Monitron is no longer open to new customers. Existing customers can continue to use the service as normal. For capabilities similar to Amazon Monitron, see our [blog post](https://aws.amazon.com/blogs/machine-learning/maintain-access-and-consider-alternatives-for-amazon-monitron). # Understanding sensor details To check that a sensor is performing as expected, check its details page. The **Sensor details** page shows the following information: + Sensor ID + Sensor status + Date the sensor was last commissioned + Date of the last measurement + Last gateway it connected to + Current signal strength of the last gateway + Sensor type + Firmware version + Sensor battery status **Topics** + [Viewing sensor details](#view-sensor-status) + [Sensor connectivity status](#sensor-connectivity-status) + [Sensor battery status](#sensor-battery-status) ## Viewing sensor details You can view sensor details on both the mobile and web app. The following section shows you how. ### To view sensor details in the mobile app 1. From the **Assets** list, choose the asset that is paired with the sensor that you want to view. 1. Choose the sensor. 1. Select the Position that is connected to the sensor you want to view. 1. Choose the **Sensor details** tab. 1. Choose the **Sensor Actions** button. 1. Choose **View sensor details**. [See the AWS documentation website for more details](http://docs.aws.amazon.com/Monitron/latest/user-guide/as-view-sensor-details.html) The **Sensor details** page is displayed. ### To view sensor details in the web app 1. From the **Assets** list, choose the asset that is paired with the sensor that you want to view. 1. Information about the sensor will be shown automatically in the **Sensor details** tab on the lower right side of the app window. ![Sensor details tab displaying sensor ID, status, battery level, measurement times, and firmware information.](http://docs.aws.amazon.com/Monitron/latest/user-guide/images/web-viewing-sensor-details-1.png) ## Sensor connectivity status When you create a sensor, you can monitor its position and connectivity status on the Amazon Monitron assets list. Sensor position states are **healthy/maintenance/warning/alarm** and sensor connectivity states are **online/offline**. A sensor's default state is **online**. If it times out due to connectivity issues, its state will change to **offline**. Once connectivity is restored, the sensor will return to an **online** state. A sensor will maintain its most recent states if it goes offline. An asset's badge on the asset list shows its most severe position and connectivity states. If its position includes both **warning** and **healthy** states, it will have a **warning** state on the asset list. If at least one asset is **offline**, it will have an **offline** state in the asset list. **Note** If a sensor is **offline**, its status is prioritized in the Amazon Monitron application asset list. The app does not support notifications if a sensor goes offline, but the app will indicate if a device goes offline. The following images show sensors that are offline. | | | | | --- |--- |--- | | ![Asset details page showing 5 positions with alarm, warning, and no sensor statuses.](http://docs.aws.amazon.com/Monitron/latest/user-guide/images/asset-offline-alarm.png) | ![Assets panel showing list of assets with identifiers and site references, with Add asset button.](http://docs.aws.amazon.com/Monitron/latest/user-guide/images/asset-offline-list.png) | ![Sensor monitoring dashboard showing offline status, warning acknowledgment, and vibration graph.](http://docs.aws.amazon.com/Monitron/latest/user-guide/images/asset-offline-detail.png) | ## Sensor battery status To help you keep track of your sensor health, each Amazon Monitron displays a sensor battery life status. You can check your sensor battery life from both the mobile app and the web app. You can use this battery status to decide when to buy new sensors. **Note** Estimated remaining battery life is calculated based on 5 years sensor battery life for a sensor taking measurements hourly. **Important** Battery life status is not available for sensors with a firmware version less than 1.6.0. You need to wait until the sensor is updated to view battery life status. The following table shows the different sensor battery states: | Battery status | Condition | Time remaining | Action | | --- | --- | --- | --- | | ![Battery status indicator showing a full green battery icon.](http://docs.aws.amazon.com/Monitron/latest/user-guide/images/battery-healthy.png) |    **Normal** |    Sensor battery is in healthy state. |    No sensor battery monitoring currently needed. | | ![Battery status icon showing a nearly empty battery level.](http://docs.aws.amazon.com/Monitron/latest/user-guide/images/battery-low.png) |    **Low** |    Battery has less than 1 year of life left. |    Begin monitoring your sensor battery. | | ![Battery status indicator showing low charge level.](http://docs.aws.amazon.com/Monitron/latest/user-guide/images/battery-urgent.png) |     **Urgent** |    Battery has less than 3 months of life left. |    Replace your sensor as soon as possible. | | ![Battery status showing Unknown value with information icon.](http://docs.aws.amazon.com/Monitron/latest/user-guide/images/battery-unknown.png) |     **Unknown** |    Battery life status is unknown. |     [See the AWS documentation website for more details](http://docs.aws.amazon.com/Monitron/latest/user-guide/as-view-sensor-details.html) | **Note** If you do not replace your sensor after its battery status is urgent, the sensor's connectivity state will change to **Offline**.