120 minute temperature notification

[Bry]

You can do that using a variable changing as a trigger. See @Chris_C 's solution for how to loop, in your case every two hours. If you need more detail, post back

Would like to check device every XX minutes for offline status

You can do something similar to what I showed above. Use a variable as the trigger for starting the automation. Then the first part of the flow is a check to see if the variable is enabled. I’ll come back to why in a second. Then have that delay 2 minutes, turn on the light, delay 2 minutes, then turn it off. Then add another trigger for the light turning off. Now when the variable is set it starts the cycle: wait, on, wait, off > repeat as long as the variable is still true