Thank you for viewing. This is a Nikken air horn compressor MAX10. The tank and gauge in the 5th image are not included. I purchased this used, assuming it was in working condition, but upon testing, the air pressure stops at around 6.5 kg, as shown in the image. The test was conducted with a DC adapter, so it might go a little higher with 12V. According to the warranty, it seems to be a product from about 25 years ago. I am looking for someone who can maintain it or someone who can use it in its current functional state. Please understand the above condition and agree to no cancellations or returns. For those who need it, please.