This is a superb video in two parts: Part 1 showing superb protection by M20 and M40 Laser Blockers defeating the most difficult laser gun, Laser Stalker LZ-1 with JTG, Jam to Gun, performance; Part two shows how small the laser beam is, how difficult it would be for a windshield mounted radar detector to even alert to a laser beam!
Escort 8500 X50 3rd pass on a different Ka speed trap. The X50 is located at top right on the visor. Look for the blue display. The X50 detected this trap 17 seconds before getting to the trap; a Multanova Ka photo speed trap on the left, a tall orange photo post. In Hong Kong, they operate at 34.3GHz.