# Number of censors count

**URL:** <https://community.purpleair.com/t/number-of-censors-count/2360>\
**Category:** Sensors\
**Created:** [October 13, 2022, 2:06pm UTC](https://community.purpleair.com/t/number-of-censors-count/2360 "2022-10-13T14:06:30Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Chamnguyen](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/chamnguyen/32/1394_2.png) [@Chamnguyen](https://community.purpleair.com/u/Chamnguyen)\
**Post date:** [October 13, 2022, 2:06pm UTC](https://community.purpleair.com/t/number-of-censors-count/2360/1 "2022-10-13T14:06:30Z")

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Hello!

Im summarizing information of sensors information in South Korea. As a new user to [Purpleair.com](http://Purpleair.com) I wonder how can I count number of censors for indoor and outdoor for Korea.

It would be great if anyone shows me the way to solve this question.

Thank you!

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**Author:** ![Ethan](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/ethan/32/177_2.png) [@Ethan](https://community.purpleair.com/u/Ethan)\
**Post date:** [October 13, 2022, 3:24pm UTC](https://community.purpleair.com/t/number-of-censors-count/2360/2 "2022-10-13T15:24:03Z")

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Hi @Chamnguyen, this article may help you to count the number of sensors in your area: [Q. How many sensors are there in a particular area?](https://community.purpleair.com/t/q-how-many-sensors-are-there-in-a-particular-area/1105).

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**Author:** ![Chamnguyen](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/chamnguyen/32/1394_2.png) [@Chamnguyen](https://community.purpleair.com/u/Chamnguyen)\
**Post date:** [October 13, 2022, 11:10pm UTC](https://community.purpleair.com/t/number-of-censors-count/2360/3 "2022-10-13T23:10:39Z")

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@Ethan That’s what I want to find for.

I appreciated you support.

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**Author:** ![TyM](https://avatars.discourse-cdn.com/v4/letter/t/90ced4/32.png) [@TyM](https://community.purpleair.com/u/TyM)\
**Post date:** [March 7, 2023, 8:51pm UTC](https://community.purpleair.com/t/number-of-censors-count/2360/4 "2023-03-07T20:51:38Z")

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@Ethan

Hi,

How do I know which updated number of total features corresponds to which area?

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**Author:** ![carlkidcrypto-paa](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/carlkidcrypto-paa/32/853_2.png) [@carlkidcrypto-paa](https://community.purpleair.com/u/carlkidcrypto-paa)\
**Post date:** [March 11, 2023, 8:53pm UTC](https://community.purpleair.com/t/number-of-censors-count/2360/5 "2023-03-11T20:53:22Z")

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You should be able to refresh your page and the data will be reloaded fresh. Then you’ll only see one set of “updated features”.