Like everybody is saying, look at the box. Some older technology will say for fluorescent with magnetic ballast only, but now all ballast sold in US and probably most countries are electronic now, so know what you have for a ballast when you buy.
There are 2 different types of technologies most used for commercial use. PIR or Passive InfraRed which looks for body heat, and Ultrasonic which actively sends out ultrasonic waves and then measure movement by calculating the difference in previous waves.
I would look for dual-technology sensors that takes both technologies and combines them into one sensor.
Fluorescent and motion sensors are really nothing new. A lot of commercial building use them in restrooms, and some power companies offer rebates for using motion sensors for controlling aisle lighting in big warehouses. Some detectors 'learn' from it's history to help eliminate nuisance trips.