Number of sensor: 4 sensors (can option 4, 6, 8 and wireless 4 sensors)
Kind of Display: color VFD
Phonic reminder: BI-BI-BI or speaker voice warning
Operating voltage: 10.8-15V
Max. Consumption: 3W
Operating temperature:-40 -- +80 degree Celsius
Buzzer volume: about 80db
Max. detect distance (Suppose the detection target is a flat wall area):2.0M
Verbal alarm function: Provided
Multi-function alert: Provided