Features:

·Stage-by-stage sound alarm

·Optional sensor style and color

·Human voice alarm (option)

·Anti-freezing, rainy-proof design, work well under extreme cold weather

Technical Specifications:

·Working voltage: DC12V2V

·Input: 4W(max)

·Beeper: 90-105dB

·Working temperature: -40~+80°C

·Frequency: 40KHz

·Alarm distance: 0.3-0.6m

·Best detection distance: 0.4-1.5m

·Detection distance: 0.4-2m