# Q: The probe resistance of ITC-308

**URL:** <https://community.inkbird.com/t/q-the-probe-resistance-of-itc-308/76>\
**Category:** Questions & Answers\
**Tags:** smart-controller\
**Created:** [October 13, 2021, 10:19am UTC](https://community.inkbird.com/t/q-the-probe-resistance-of-itc-308/76 "2021-10-13T10:19:51Z")\
**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 13, 2021, 10:19am UTC](https://community.inkbird.com/t/q-the-probe-resistance-of-itc-308/76/1 "2021-10-13T10:19:51Z")

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A: R25°C=10KΩ±1% R0°C=26.74~27.83KΩ B25/85°C=3435K±1%

NTC probe has no distinction between positive and negative, you only need to cut the wire and connect the two wires together.