Using this digital push button is a breeze. First, connect it to your device within the 3.3V - 5V voltage range. It's a 'plug and play' type, so just plug it in and you're good to go. You can easily tell if it's a digital sensor by the 'D' in the corner. The icons on the back will help you understand its function.
When you press the button, it'll give you a satisfying feeling, especially without the plastic cap. It can be used to create all sorts of interesting and interactive projects.
For maintenance, keep it in a dry place. Avoid getting it wet as it may damage the internal components. The immersion gold surface makes it durable, but still handle it with care. And if you want to assemble it, use the two 3mm diameter holes with the correct center - to - center distance as described in the features.