It is the same thing as the 49225 except it is 4MP instead of 2MP. I have both.
Basically since they are on the same sensor (1/2.8") the 2MP will perform better at night.
But the 49225 with autotracking are all sold out and you cannot buy it anywhere but used now with autotracking, so you buy the 49425 or go up $340 to the next autotracking PTZ.
Basically since they are on the same sensor (1/2.8") the 2MP will perform better at night.
But the 49225 with autotracking are all sold out and you cannot buy it anywhere but used now with autotracking, so you buy the 49425 or go up $340 to the next autotracking PTZ.