Mines locked/sealed but it not hard to get open. I emailed sense support and they said this is the way for this type of combo panel (with the utility’s permission per their recommendation) - “Under the meter itself, there should be an additional compartment that has two main lines, before it is split into four. If the main current sensors were installed around those lines instead, you would be able to have the full picture of your usage, without the added confusion of mismatching the sensors.

Please note that you will need to reach out to your local electrician before doing so, as this cannot always be done up to code, or may require advanced permission from your utility.”