combine Line and Scatter graph

[Eddy Mulyono]

Can I combine a Line graph and a Scatter graph?

My use case:

My institution have an environmental time series data, collected using
remote sensors. I want a Line graph of this.

We don't trust the remote sensors as much as our lab equipments. So,
to validate our data, we also collect samples by hand from time to
time, and bring them to the lab. I want a Scatter graph of this.

It would be nice to display both of them in a single graph, so we'll
know how close the remote sensors adheres to our lab equipments.

The dataset might look like:

from the remote sensor:
datetime, temp
today 3 pm, 21
today 4 pm, 20
today 5 pm, 19

from the lab:
datetime, temp
today 3.15pm, 20.75

Thanks in advance,

-Eddy Mulyono