# Substrate probes

{% content-ref url="substrate-probes/what-soil-probes-are-compatible-with-the-grow-sensor" %}
[what-soil-probes-are-compatible-with-the-grow-sensor](https://faq.growsensor.co/substrate-probes/what-soil-probes-are-compatible-with-the-grow-sensor)
{% endcontent-ref %}

{% content-ref url="substrate-probes/which-sensors-should-i-purchase" %}
[which-sensors-should-i-purchase](https://faq.growsensor.co/substrate-probes/which-sensors-should-i-purchase)
{% endcontent-ref %}

{% content-ref url="substrate-probes/what-do-the-substrate-probes-measure" %}
[what-do-the-substrate-probes-measure](https://faq.growsensor.co/substrate-probes/what-do-the-substrate-probes-measure)
{% endcontent-ref %}

{% content-ref url="substrate-probes/can-i-change-my-substrate-type-in-the-grow-app" %}
[can-i-change-my-substrate-type-in-the-grow-app](https://faq.growsensor.co/substrate-probes/can-i-change-my-substrate-type-in-the-grow-app)
{% endcontent-ref %}

{% content-ref url="substrate-probes/how-do-i-connect-a-substrate-probe-to-the-grow-sensor-using-the-sdi-12-connector-block" %}
[how-do-i-connect-a-substrate-probe-to-the-grow-sensor-using-the-sdi-12-connector-block](https://faq.growsensor.co/substrate-probes/how-do-i-connect-a-substrate-probe-to-the-grow-sensor-using-the-sdi-12-connector-block)
{% endcontent-ref %}

{% content-ref url="substrate-probes/how-many-substrate-probes-can-i-use-with-the-grow-sensor" %}
[how-many-substrate-probes-can-i-use-with-the-grow-sensor](https://faq.growsensor.co/substrate-probes/how-many-substrate-probes-can-i-use-with-the-grow-sensor)
{% endcontent-ref %}

{% content-ref url="substrate-probes/how-do-i-position-my-soil-probe-for-my-pot-size" %}
[how-do-i-position-my-soil-probe-for-my-pot-size](https://faq.growsensor.co/substrate-probes/how-do-i-position-my-soil-probe-for-my-pot-size)
{% endcontent-ref %}

{% content-ref url="substrate-probes/my-vwc-reading-is-too-low-or-high-help" %}
[my-vwc-reading-is-too-low-or-high-help](https://faq.growsensor.co/substrate-probes/my-vwc-reading-is-too-low-or-high-help)
{% endcontent-ref %}