Which is best quality of PIR sensor

As we know there are many types of PIR sensors available in market I want the best quality of PIR sensor in project bcz I will fix the sensor in the movable part where the risk of getting damage of sensor is high.

So help suggest me the best quality of PIR senior available .and suggest websites where I can get such types of sensor .

Define "best quality" and "movable part". In your previous post you didn't want a PIR sensor to detect humans, because that needed motion. Are you looking for something like a "grid-eye". Leo

For “best quality” it also often helps to have a budget. You can probably find cheap sensors <UDS 1 a piece, up to high end grade sensors that costs thousands of USD a piece, and which can withstand just about anything you put them through, bar maybe a dip in molten lava.