Basically, you're looking at a 40-liter tank and a take-off weight of 82kg, so it's not a toy—we've seen these handle 15-20 hectares per hour easily, and the spray width runs 6 to 10 meters depending on your nozzle setup and height.
Real-time monitoring comes from front and back FPV cameras, and the radar for obstacle detection is pretty much standdard now, but what it does is let you fly at 0-12m/s without constantly watching the ground—though don't expect it to work well in heavy rain above 90% humidity or wind over 10m/s (we usually have stock, but confirm lead time for the quick-detachable battery).

Flight time is only 10-15 minutes, which is typical for a 42kg frame with a 40L load, so you'll want multiple batteries for a full day's work.
Aviation alumnum alloy frame holds up fine, and heavy-duty brushless motors are waterpoof and dustproof—one buyer we know ran it through a dusty field for 20 days or so without issues, though the spray flow tops out at 10L/min, so don't expect it to flood a paddy in one pass.
Anyway, teh work temperature range is -10 to 70°C, so it's better than most for tropical climates, but the flying height is capped at 30m, which limits its use for steep hillside spraying.
We typically require a minimum order of 5 units for the JT40L-404, but we can talk if you need fewer for a trial.
Lead time is around 15-20 working days after order confirmation, depending on current production load.
Yes, we can provide CE and FCC certifications upon request, along with test reports for the radar and battery.
It's adjustable — you can set the spray width between 6 and 10 meters using the onboard controller, depending on crop spacing.
The tank is secured with quick-release clamps, so you can swap or clean it in under a minute without tools.