Value VH115N single stage vacuum pump test

The cheap vacuum pump successfully reached its nominal ultimate vacuum (printed on the label). Of course this video tells nothing about its speed. Measurement was done with a Refco REFVAC-RC 4688291 device, the accuracy of which is ±5% or 10 microns within the 10 - 10000 micron range. The device was not in fact cheap. I purchased it from a local dealer for 40k HUF, while a Bosch Robinair 2-stage device was priced at 63k HUF. Still, the vacuum gauge was the most expensive with its whopping 90000 HUF 😂