This PTO (power take-off) generator works with small tractors with at least a 30 HP engine to generate clean, efficient power. The gearbox input speed is 540 RPM, the generator speed is 3600 RPM, and the gear ratio is 1:6.666.
I purchased this item late 2022 and it arrived just fine. I was finally able to test this generator hooked up to my transfer switch and was satisfied with the results. I used a Kill-Watt meter in the house to observe the voltage and hertz and both were pretty much on the mark (a small tweak to my PTO RPM would have made it spot on). I also hooked up an Ampprobe meter to the house to monitor the THD being generated by the PTO generator and it stayed pretty much in the 5.3-5.7% range with the 3 ton central air and oven running, in addition to whatever else in the house was drawing power. Most generator manufacturers say anything less than 6% THD is safe for electronics and my electronics did not have issue with the power being supplied.
One issue that I still have is the gearbox cover leaks oil out of the plate where the check plug is located. I will probably have to remove that plate and use a sealer to stop the leak. The owner's manual provides the recommended oil fill level, but I feel that is overfilling the gearbox and that might be part of the problem with the leaking.
Overall, I'm happy with my purchase and I would recommend it as it is providing safe power to whatever you hookup to it.