IMHO, the Edge (and all other OBD port monitors) are No Substitute for gauges.
First, by the time you add the Pyro Sensor to them, you could have bought the Real Thing.
Second, they give a false sense of giving you valuable information by the dz's of useless
readouts you'll never care about or need.
Third, they're only accurate as the factory sensors are telling the PCM so things like trans & coolant temp are notoriously poor.
In the end, there's simply NO FREE LUNCH that you're promised and a poor compromise for Real Gauges, Real Programming, & A Real Scanner.
Lots of posts here on Good, Real Gauges. IssPro, AutoMeter, both good choices. If you're on a budget many people seem to be happy with GlowShift.
I am Very Happy with my IssPro EV2's