Number of sensor: 4 sensors
Beeping alert: BI BI BI
Kind of Display: LED
Operating voltage: 10.8-15V
Max. Consumption: 2W
Operating temperature: -40C ~ +80C
Buzzer volume: <>80db
Max. detection distance (Suppose the detection target is a flat wall area): 2.0M
Human body detection distance: 1.2-1.5M