IRST
Range v/s subsonic fighter aircraft: 80 km from front, 130 km from rear (20.000 ft), 110 km from rear at low altitude
Visual camera
Range v/s fighter aircraft: 45 km
Laser ranger
Range: 33 km
Click to access OSF_UK_060208.pdf
http://www.flightglobal.com/news/articles/tests-begin-on-rafale-optronics-50879/
IRST ID range may be 40 km.
History and War 