I have been using the Eachine OSD5840 5.8G 600mw 40CH AV Transmitter Module Build in OSD for FPV for a few months and it has been working pretty good. I bought the
Eachine LCD5802S diversity 7 inch monitor for use after I got the OSD transmitter. The monitor gave you startup time the overlay from the OSD transmitter had to be
re-positioned on the screen which wasn't a problem. With the transmitter you get startup time and battery power level which is nice so any single receive monitor will also
work good with the OSD transmitter. Both of these Eachine products are nice to have and you can get the OSD transmitter from BangGood for $$22.99.
http://www.banggood.com/Eachine-OSD5840-5_8G-600mw-40CH-AV-Transmitter-Module-Build-in-OSD-p-1043962.html?rmmds=search
Eachine LCD5802S diversity 7 inch monitor for use after I got the OSD transmitter. The monitor gave you startup time the overlay from the OSD transmitter had to be
re-positioned on the screen which wasn't a problem. With the transmitter you get startup time and battery power level which is nice so any single receive monitor will also
work good with the OSD transmitter. Both of these Eachine products are nice to have and you can get the OSD transmitter from BangGood for $$22.99.
http://www.banggood.com/Eachine-OSD5840-5_8G-600mw-40CH-AV-Transmitter-Module-Build-in-OSD-p-1043962.html?rmmds=search