Hey @jmed999,
So sorry that it took 15 days for a response - I didn’t see your thread come through! Unfortunately, we don’t recommend the Wireless Flow Meter on a 1.5" main line since it will pinch the supply 
Hey @jmed999,
So sorry that it took 15 days for a response - I didn’t see your thread come through! Unfortunately, we don’t recommend the Wireless Flow Meter on a 1.5" main line since it will pinch the supply