# What is the best way to check the accuracy of my unit? **URL:** \ **Category:** Tempest Owners\ **Tags:** tempest\ **Created:** [August 13, 2023, 8:00pm UTC](https://community.tempest.earth/t/what-is-the-best-way-to-check-the-accuracy-of-my-unit/22033 "2023-08-13T20:00:44Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![gamblefabrications](https://avatars.discourse-cdn.com/v4/letter/g/d07c76/32.png) [@gamblefabrications](https://community.tempest.earth/u/gamblefabrications)\ **Post date:** [August 13, 2023, 8:00pm UTC](https://community.tempest.earth/t/what-is-the-best-way-to-check-the-accuracy-of-my-unit/22033/1 "2023-08-13T20:00:45Z")
what is the best way to check the rainfall and temperature accuracy of my unit? ---
**Author:** ![vinceskahan](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/vinceskahan/32/2785_2.png) [@vinceskahan](https://community.tempest.earth/u/vinceskahan)\ **Post date:** [August 13, 2023, 9:17pm UTC](https://community.tempest.earth/t/what-is-the-best-way-to-check-the-accuracy-of-my-unit/22033/2 "2023-08-13T21:17:00Z")
rainfall - buy a CoCoRAHS manual gauge to compare with temperature+humidity - buy a reference gauge (ecowitt is inexpensive) or build yourself a little arduino or pi or pi pico breadboard rig with sensors to compare with. Note that all sensors need to be tested versus each other to know ‘they’ are accurate. Buying officially calibrated temperature/humidity sensors is ‘really’ expensive. ---
**Author:** ![system](https://us1.discourse-cdn.com/flex020/uploads/sws/original/3X/9/5/954d64c24c1612a76fabaaa3298be78bac443b7f.png) [@system](https://community.tempest.earth/u/system)\ **Post date:** [February 3, 2025, 9:17pm UTC](https://community.tempest.earth/t/what-is-the-best-way-to-check-the-accuracy-of-my-unit/22033/3 "2025-02-03T21:17:53Z")
This topic was automatically closed 540 days after the last reply. New replies are no longer allowed.