# K12 Sensor Installation Concern: 2. Security Vulnerabilities

**URL:** <https://community.purpleair.com/t/k12-sensor-installation-concern-2-security-vulnerabilities/11770>\
**Category:** Uncategorized\
**Created:** [February 27, 2025, 6:04pm UTC](https://community.purpleair.com/t/k12-sensor-installation-concern-2-security-vulnerabilities/11770 "2025-02-27T18:04:06Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Ag2000](https://avatars.discourse-cdn.com/v4/letter/a/ac8455/32.png) [@Ag2000](https://community.purpleair.com/u/Ag2000)\
**Post date:** [March 4, 2025, 2:36am UTC](https://community.purpleair.com/t/k12-sensor-installation-concern-2-security-vulnerabilities/11770/2 "2025-03-04T02:36:22Z")

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Have you researched using the PurpleAir Clasic SD?

> [@Which Sensor to Choose](https://community.purpleair.com/t/which-sensor-to-choose/125/1):
>
> The [PurpleAir Classic](https://www2.purpleair.com/products/purpleair-pa-ii?variant=40067691708513) contains two laser counters for particulate matter data collection, as well as a BME280 from Bosch, which is the component responsible for measuring temperature, humidity, and pressure. The Classic is not capable of measuring VOCs. Designed for outdoor use, the Classic is meant to be mounted on a wall or post.
> 
> The [PurpleAir Classic SD](https://www2.purpleair.com/products/purpleair-pa-ii?variant=40067691774049) contains all of the features of the Classic, as well as an added SD logger for offline data collection. The Classic SD _does_ come with a micro SD card.

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_[View the full topic](https://community.purpleair.com/t/k12-sensor-installation-concern-2-security-vulnerabilities/11770)._