ZOSI C298 Guide De Démarrage Rapide page 12

Installation Distance, Height and Angle
Distance: Best accuracy for objects within 5-50 ft (1.5-15 m).
Angle: Tilt the camera down about 30°-60° from the horizontal position.
Height: Install the camera 8-16 ft (2.5-5m) above the ground.
10 - English