I've ordered these:
https://www.ebay.com/itm/4x-TPMS-Sensors-Rubber-Snap-In-433MHz-for-Nissan-Leaf-2017-2018-Dec-17/332732451247?fits=Year%3A2018%7CModel%3ALeaf%7CMake%3ANissan&hash=item4d786649af:g:TeYAAOSwLpxbWPjW:rk:1:pf:0
Will have them installed in a few days. I'll let you know if there...