> For the complete documentation index, see [llms.txt](https://help.waterwatch.io/3.0.1/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.waterwatch.io/3.0.1/installation-guides-tank-monitors/tank-monitor-4g-setup-after-oct-2022.md).

# Tank Monitor - 4G Setup (after Oct 2022)

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Before installing please read our [positioning tips](/3.0.1/tank-monitor-positioning.md)
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{% file src="/files/2CQD4pJP8h8cZKXkLaAm" %}

<figure><img src="/files/srx1t5PlvT6nqqBZxw1w" alt=""><figcaption></figcaption></figure>

#### Tools you'll need:

To give your sensor a clear view of the water in your tank, [you'll need to drill a 50 - 60mm hole in your tank](/3.0.1/hole-saw-options.md). This is a standard size drill bit available from your local hardware store.&#x20;

<figure><img src="/files/J79bVjC3aHqHKP2rlybV" alt=""><figcaption></figcaption></figure>

#### Open the mobile app and begin the set up wizard, you'll need to be at your tank to follow these steps.

<figure><img src="/files/lLnGjbyWUmKSbtsUFh7h" alt=""><figcaption></figcaption></figure>

**The setup wizard will help you to:**

* Connect to the tank monitor with Bluetooth
* Drill a 50 - 60mm hole in your tank
* Take measurements
* Attach your tank monitor to the tank
* Verify your first measurements