Passive Infrared Switch Sensor for wall or ceiling,for motion and illuminance level detection,Zero Crossing technology,ONOFF load management,wall or ceiling installation,IP42 degree of protection,screw terminal connection,coverage area of 6m width for 140 and field depth of 8m forinstallation height of 2.5m,maximum installation height of 6m,power supply240V a.c, 5060 Hz, maximum load of 4.3A at 230 V a.c.,trimmer adjustment of illuminance levelfrom 10lux to 1275lux and delay time from 10s to 10 min