--- title: What to do when your sensor arrives description: what to do once your sensor arrives --- [Skip to content](https://support.pollensense.com/what-to-do-when-your-sensor-arrives#main-content) [More support](https://support.pollensense.com/kb-tickets/new?hsLang=en-us) [Customer portal](https://support.pollensense.com/tickets?hsLang=en-us) [![Logo Cream](https://support.pollensense.com/hs-fs/hubfs/Logos/Logo%20Cream.png?width=1&name=Logo%20Cream.png)](https://www.pollensense.com) - [Support Home](https://support.pollensense.com/) - [Sensors](https://support.pollensense.com/) Show submenu for Sensors - [Mounting Instructions](https://support.pollensense.com/sensor-mounting-instructions) - [Pre-Arrival Checklist](https://support.pollensense.com/pre-arrival-checklist) - [Site Selection & Clusters](https://support.pollensense.com/site-selection-clustering) - [Portal](https://support.pollensense.com/pollen-sense-portal-overview) Show submenu for Portal - [Overview](https://support.pollensense.com/pollen-sense-portal-overview) - [Link to Portal](https://portal.pollensense.com/) Open main navigation Close main navigation - [Support Home](https://support.pollensense.com/) - [Sensors](https://support.pollensense.com/) Show submenu for Sensors - [Mounting Instructions](https://support.pollensense.com/sensor-mounting-instructions) - [Pre-Arrival Checklist](https://support.pollensense.com/pre-arrival-checklist) - [Site Selection & Clusters](https://support.pollensense.com/site-selection-clustering) - [Portal](https://support.pollensense.com/pollen-sense-portal-overview) Show submenu for Portal - [Overview](https://support.pollensense.com/pollen-sense-portal-overview) - [Link to Portal](https://portal.pollensense.com/) - [More support](https://support.pollensense.com/kb-tickets/new) - [Customer portal](https://support.pollensense.com/tickets) - [Contact us](mailto:Support@pollensense.com) [Contact us](mailto:Support@pollensense.com) Pollen Sense Knowledge Base - There are no suggestions because the search field is empty. 1. 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[Getting started](https://support.pollensense.com/getting-started?hsLang=en-us) # What to do when your sensor arrives ![when-sensor-arrives](https://support.pollensense.com/hs-fs/hubfs/when-sensor-arrives.png?width=670&height=377&name=when-sensor-arrives.png) ### What’s in the box? - APS-400 Sensor - Tripod threaded insert - Power supply & cable - 2x Media cartridges (one pre installed in sensor) - Threaded tripod mount adapter (1/4-20 or 3/8-16 threads) - Ethernet weather jacket - 2 metal zip ties - 2 plastic zip ties - 4 screws, 4 washers, and 4 spacers for VESA connection (Bagged together) - Quick-start guide & experimental notice papers - *If purchased:* Hard-shell carrying case ![sensor-in-case](https://support.pollensense.com/hs-fs/hubfs/sensor-in-case.png?width=670&height=573&name=sensor-in-case.png) #### **Setup Before Going to Deployment Site** **Note:** For best results, complete the following steps indoors before installing the APS-400 sensor at its final location. 1. [**Download the Particle Sense app**](https://onelink.to/yjcd67) and sign in with your [portal.pollensense.com](http://portal.pollensense.com/) credentials. 2. **Start inside near power and internet:** Place the sensor on a flat surface with the lid facing up. 3. **Power the sensor:** Plug the power supply into the port on the bottom of the sensor. 1. **Open and verify power:** Unlatch the right side, remove the foam, and check for red and green lights on the left-side circuit board. Then, close and latch the sensor. 4. **Connect via Bluetooth:** Open the Particle Sense app and hold your mobile device near the sensor you are setting up. On the main screen, locate the matching **sensor ID number**, then tap it to open the sensor’s info page. Wait for the Bluetooth icon to turn green—this means you're connected. *(**Note**: **You do not need to pair the sensor through your phone’s Bluetooth settings**. Just ensure Bluetooth permissions are enabled for the app.)* 5. **Connect your sensor to the Internet:** For the most stable connection, an active Ethernet cord to the sensor. Wi-Fi is also available—if preferred, please follow the [Wi-Fi setup video](https://vimeo.com/manage/videos/1069334490/e958abd8d0) before continuing. 1. **Check connectivity:** You can ensure the sensor is connected to the internet by selecting either the Wi-Fi or Ethernet dropdown menu on the sensor’s Manage page and checking for a displayed IP Address. 6. **Allow time for updates:** Once online, allow the sensor you're setting up to sit for 30–60 minutes to complete any updates. 7. **Check focus:** If the deployment site is remote or far away, schedule an onboarding call to verify microscope focus before traveling. Shipping can shift the focus, and it’s easier to adjust beforehand. 8. **You’re Ready for Deployment!** Please proceed to the [**Sensor Mounting Instructions**](https://pollensense.atlassian.net/wiki/spaces/PSS/pages/278659073) instructions. ![quick-start-guide](https://support.pollensense.com/hs-fs/hubfs/quick-start-guide.png?width=670&height=518&name=quick-start-guide.png)   - [Getting started](https://support.pollensense.com/getting-started?hsLang=en-us) - [General](https://support.pollensense.com/general?hsLang=en-us#main-content) - [Portal](https://support.pollensense.com/general?hsLang=en-us#portal) - [Troubleshooting](https://support.pollensense.com/troubleshooting?hsLang=en-us) - [FAQs](https://support.pollensense.com/faqs?hsLang=en-us#main-content) - [Aerobiology](https://support.pollensense.com/faqs?hsLang=en-us#aerobiology) [![Pollen Green-Icon](https://support.pollensense.com/hs-fs/hubfs/Pollen%20Green-Icon.png?width=75&height=75&name=Pollen%20Green-Icon.png "Pollen Green-Icon")](https://pollensense.com) Pollen Sense [mailto:support@pollensense.com](mailto:support@pollensense.com) Copyright © 2025,