> For the complete documentation index, see [llms.txt](https://sensorbeeab.gitbook.io/sensorbeeab-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sensorbeeab.gitbook.io/sensorbeeab-docs/readme/sensorbee-air-product-manual/sensorbee-air-pro-2/quick-start-guide/4.-deployment.md).
# 4. Deployment
4**.1 Check before deployment**
Before installing the unit in its final location, it is recommended to test its function. This can easily be done through Sensorbee's cloud services or your own server. The standard sensor value update interval on Sensorbee Air products is set to 5 minutes from the factory. This is how often the unit reads its internal and external sensors and sends the data to the server.
If all sensors are reporting and the functions seem to be operating properly, it is time to power down the unit and install it in its final location. To turn off the unit, press and hold the power button for 5 seconds. When the unit is being powered off, the Status LED will turn solid red for 10 seconds and then turn off, indicating that the unit is now in power-down mode. If an error occurs during power-off, the LED will blink red six times before the unit reboots. The unit will turn on if the power cable is connected to the power connector and the incoming power is at an adequate level. This means that if the unit is connected to a solar panel, the solar panel needs enough sunlight to start the unit. If an external power supply is used, then this is not an issue.\
It is recommended to use a power supply as the power source when testing indoors. The unit is now ready for deployment.
**4.2 Choosing location of deployment**\
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Location selection depends on the application, such as urban background monitoring, traffic monitoring, etc. The user should consider the following when selecting the final location:
* Install the unit far away from pollution sources that are very close and have insufficient air flow (such as chimneys, air conditioners, etc.) that may disrupt your readings.
* Install the unit between 3 and 4 meters high.
* If the unit is installed with a solar panel, place the unit at a safe distance from buildings, trees, and other obstructions to ensure that the solar panel receives maximum solar radiation. This will guarantee a proper battery recharge and prevent Sensorbee Air from running out of battery.
* If a unit is installed in a location that might not receive enough sunlight for extended periods, such as in northern countries, an external power source is recommended instead of a solar panel.
* For optimal sensor performance, it is recommended to mount the unit in a location that is not directly exposed to sunlight or receives as little sunlight as possible.
To ensure proper operation and due to design, Sensorbee Air products must be installed with the air inlet of the sensors facing downward. Different types of installations are possible, such as vertical masts, walls. Connecting the external cables to the unit before clicking it onto the bracket may be easier. When the external power cable is connected to the unit , the status LED should light up as described in earlier chapters. This indicates that the unit has started up correctly and is connected to the server.
**4.3 Installation to Mast**\
As figure 5 shows, the mounting bracket is attached to the mast using a stainless steel hose clamp. Once this is done, the unit can be attached onto the bracket and the external cables can be connected to it.
Figure 5. Mounting of Air Pro 2 Cellular on a mast.
**4.4 Installation on wall**
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Attach the mounting bracket to the wall using four screws. Then, mount the unit onto the bracket and connect the external cables to it. Either use the solar panel or the wall adapter to power the unit. The unit has been deployed and is sending sensor data to the server.
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