Excellent, I was about to go the route of reading the led flashes with some kind of sensor but I was reminded that anything touching the meter can be considered

Excellent, I was about to go the route of reading the led flashes with some kind of sensor but I was reminded that anything touching the meter can be considered meter tampering in the US which is a crime...yikes. Thankfully passively decoding its RF emissions from the garage isn’t illegal yet! So HN, which SDR dongle should I buy?