The last time I checked $100 is kind of cheap for a good state of the art laser/radar detector. I bought one in Cali that would basically pick up the lady at Ralph's scanning groceries, im kidding of course but that system i had was around $350.
https://radartest.com/eshop/10Expand...oductCode=1023
If your willing to spend 10 bucks on it they have all the results and testing in this...