* AM Wireless connection between Display and Control box.
* Bright Colorful LED Display.
* Obstacle orientation indication.
* Buzzer
* Dual CPU, 4 sensors system.
* Operating voltage rating: DC12V.
* Max power: Pmax<3W.
* Operating temperature: -40? ~80? .
* Display and Alarm Distance:
Outer(A&D sensor): 0.2m~1.0m
Inner(B&C sensor): 0.2m~1.5m.
* Alarm voice: >80dB.
* Wireless Frequency: AM 433.92MHz.
* Ultrasonic frequency: 40KHz.
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