If it's calling for the dickey john monitor I might assume it has the dickey john "style" sensors and harness.  If that's the case, you have a ton of options.  The kinze equivalent (built by DJ) is the Km-1000 and Km-3000.  I have a KM3000 sitting here but it has to go with the planter if I ever sell it.  I use Field IQ through my FMX Trimble display now.  KM/DJPM seem to bring between $700 - $900 used.  The KM-DJPM 1000's were pretty limited so at minimum I would want a 3000.  Like I said, unless you find a good buy on one they are fairly expensive.

Loup makes a good one if you are looking for a new one.  They are great guys to deal with so give them a call.  http://loupelectronics.com/products/loup-ii-planter-monitor.html.&n... I recall I had the Loup 1 on a JD 7000 planter.  I think it was around $1,500 new.  Worth it in my opinion.  I don't know what the Loup II's cost.

Sensor 1 makes one as well https://www.ebay.com/itm/Planter-Drill-Monitor-Row-Population-Digita...

The KPM Kinze monitors were Mux Bus and wouldn't be compatible with the Dickey John sensors.

You could also go to a 20/20 but that gets a little expensive.  It all depends on what level you want to do.