# Open API v2

**URL:** <https://forum.ewelink.cc/t/open-api-v2/206065>\
**Category:** eWeLink CUBE\
**Created:** [October 15, 2025, 10:20am UTC](https://forum.ewelink.cc/t/open-api-v2/206065 "2025-10-15T10:20:24Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ryszard](https://avatars.discourse-cdn.com/v4/letter/r/dbc845/32.png) [@ryszard](https://forum.ewelink.cc/u/ryszard)\
**Post date:** [October 15, 2025, 10:20am UTC](https://forum.ewelink.cc/t/open-api-v2/206065/1 "2025-10-15T10:20:24Z")

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Has anyone managed to get Query Device Status working for the temperature sensor?

I am trying :

/open-api/v2/rest/devices/{device serial number}/query-state/temperature

data :

{“query\_state”:{“temperature”:{“timeRange”:{“start”:“2025-10-06T02:14:54Z”,“end”:“2025-10-06T12:14:54Z”}}}}

But I get an error 110021

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**Author:** ![SuiKa](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.ewelink.cc/suika/32/8656_2.png) [@SuiKa](https://forum.ewelink.cc/u/SuiKa)\
**Post date:** [October 20, 2025, 8:50am UTC](https://forum.ewelink.cc/t/open-api-v2/206065/2 "2025-10-20T08:50:41Z")

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Do you need the temperature history for a specific time period?

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<div class="post-metadata">

**Author:** ![ryszard](https://avatars.discourse-cdn.com/v4/letter/r/dbc845/32.png) [@ryszard](https://forum.ewelink.cc/u/ryszard)\
**Post date:** [October 20, 2025, 11:20am UTC](https://forum.ewelink.cc/t/open-api-v2/206065/3 "2025-10-20T11:20:23Z")

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Yes , exactly.