* Three Color Big LED Display
* Buzzer
* Display Distance: 0.4m~1.5m
* Dual CPU. Sensors quantity: 4PCS. 6PCS. 8PCS
* Alarm Distance: 0.1m~1.5m
* Obstacle orientation indication
* Alarm voice: >80dB
* Operating voltage rating: DC12V
* Ultrasonic frequency: 40KHz
* Max power: Pmax<5W
* Operating temperature: -40º C~80º C
Optional: P601 add Natural human voice+Buzzer Type
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