I bought a device called Sense to monitor home electrical usage that is installed in your electrical panel.
The problem is that I only have one 240v breaker and it is already in use and the whole electrical panel is full. I don't want to spend a lot of money on this and I am looking for cheaper solutions (e.g., not installing a subpanel!).
Could I pigtail this device with the existing 240v breaker? The electrical usage of the device is minimal. I don't know what is already on this breaker (it is unlabeled). I have gas for stove, dryer, hot water, and heat. Maybe the fridge or washing machine is the biggest electrical device.
Could I replace the breaker with a double tap breaker? I don't know if that exists for 240v. Here is a photo of the current breaker:
Are there other options?
I will be calling an electrician to come in and do the work, but I'd like to be sure there is a relatively easy way to do this before he gets here.