none 

Statements about this table:
trackir 4: pro be release in 2005
trackir 4: pro be release in 2009
model
sensor resolution
angle
released
latest software
trackir 1
60k pixels (eg 300200)
33
2001
version 3.x
trackir 2
60k pixels (eg 300200)
33
2003
version 3.x
trackir 3
355288
33
2004
version 4.x
model
sensor resolution
angle
released
latest software
trackir 3: pro
355288
33
2004
version 4.x
trackir 4: pro
355288 (sub - sampled at 710288)
46
2005
version 4.x
trackir 5
640480
51.7
2009
version 5.x