PTZ speed as the basis
1, including high speed dome (0-360 / s);
2, the speed of the ball (0-60 / S);
3, low speed ball (0-30 / S).
To use the environment to distinguish
1, indoor dome camera and outdoor dome camera,
2, outdoor ball, including waterproof devices and thermostats, mostly double with heating and fan.
Divided by installation
1, lifting (through the bracket hanging on the roof and ceiling);
2, side mounted (fixed by the bracket in the wall or pole);
3, embedded (directly in the ceiling hole, no bracket).