DSO-2090 PC-Based 40MHz 2-Channel USB Digital Storage Oscilloscope

Pros: The price is amazing for a two channel 40 MHz digital oscilloscope. If you've used a DSO before, then the user interface is intuitive and has quite a few useful features like math and FFT functions. Has an external trigger input as well, standard BNC connections, and USB self powered.
Scope probes are essentially identical to Tektronics probes.

Cons: Occasionally this scope will have a false trigger (even when the trigger is set to single or normal). The trace will be very jittery in this case, to work around this issue you need to adjust the horizontal scale to a different setting.

Other: Again, for the price this is a completely amazing deal, and a must for any electronics hobbyist. Perfect for checking analog audio and video connections, or the 'slow' digital circuit.

Pros: - Well made electronics - Enough precise (for almost everything except for calibration tasks ... obviously) - "Cheap" compared to desktop units. - Offers most functions you will need in a small electronic lab. - Light and portably, you can take it everywhere (but you will need a computer still). - Probes included are good quality and easy to calibrate. - It runs also in MAC (trough a virtual machine). - You get software and source code, so if you want you can improve it or make your own version.

Cons: - FFT function isn't the best for audio frequency. - Software you get is just "right"

Other: Useful USB oscillograph, a good choice if you don't want to spend $300 (at least) in a desktop model. Software is easy to use so it's almost plug and "play". I recived it very soon and well packaged. In my case it was