I have yet to find a sensor cleaner that I am happy with. Recently I learned of a company’s product called eyelead. The company is based in Germany. The product is actually a stick with gel on the end of it. It comes with several white sticky papers that are used to clean the dust off of the gel.
I was skeptical at first, but after trying the product on my Nikon D700, I found it cleaned off dust that I had never been able to get off before.
The product is US$40 and it is it is available on the following website: