◆ Voice without Display.
◆ Natural human voice+Buzzer Type.
◆ 4 sensors system.
◆ Operating voltage rating: DC12V.
◆ Max power: Pmax<5W.
◆ Operating temperature: -40℃~80℃.
◆ Alarm Distance: 0.1m~1.5m.
◆ Alarm voice: >80dB.
◆ Ultrasonic frequency: 40KHz.
◆ Sensors color: Black / Silver / White optional.