# Q: How to change a probe for ITC-306A?

**URL:** <https://community.inkbird.com/t/q-how-to-change-a-probe-for-itc-306a/113>\
**Category:** Questions & Answers\
**Tags:** smart-controller\
**Created:** [October 18, 2021, 10:06am UTC](https://community.inkbird.com/t/q-how-to-change-a-probe-for-itc-306a/113 "2021-10-18T10:06:54Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![INKBIRD](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.inkbird.com/inkbird/32/366_2.png) [@INKBIRD](https://community.inkbird.com/u/INKBIRD)\
**Post date:** [October 18, 2021, 10:06am UTC](https://community.inkbird.com/t/q-how-to-change-a-probe-for-itc-306a/113/1 "2021-10-18T10:06:54Z")

</div>

A: (1) Open the controller box.

 ![图片1](https://canada1.discourse-cdn.com/flex031/uploads/inkbird1/original/1X/42ccd7ef797a6ef2fb322e696a46ee04dc2cf7f4.jpeg)

(2) You will see two probe connectors on the circuit board.

 ![图片2](https://canada1.discourse-cdn.com/flex031/uploads/inkbird1/original/1X/a6469bbc73983e8640c415e9fa809ce7225b286f.png)

(3) Remove the probe connectors.

 ![图片3](https://canada1.discourse-cdn.com/flex031/uploads/inkbird1/original/1X/bd9d10c3ae868a5fa8ca014bdb586be71fa17a63.png)  
 ![图片4](https://canada1.discourse-cdn.com/flex031/uploads/inkbird1/original/1X/2f1e72d321fa5a3887a71919fe81d96a7e740142.png)  
 ![图片5](https://canada1.discourse-cdn.com/flex031/uploads/inkbird1/original/1X/915e40d50bd8a42ab37184d670f58fddbd19af4f.png)

(4) Connect the connectors of the new probe.

 ![图片6](https://canada1.discourse-cdn.com/flex031/uploads/inkbird1/original/1X/62e644f5adcae71b9ba04d7eebe38f9f4c78c4ed.jpeg)

(4) Secure the cable.

 ![图片7](https://canada1.discourse-cdn.com/flex031/uploads/inkbird1/original/1X/086c76e4f13a10a4c27300f4485a253759b13e58.png)

(5) Reinstall the back of the controller box.

 ![图片8](https://canada1.discourse-cdn.com/flex031/uploads/inkbird1/original/1X/8d58ec5d9c3ca137550ea52e47b56983db40abca.png)