picture1: HC-AQ-LCD1 (LCD)
picture2: HC-AQ-LED1-FY4 (LED ,flash sensors)
picture3: HC-AQ-VFD1 (VFD)
1) different distance with different buzzle and color display
2) will be buzzle ,distance range 0.3-2cm from obstacle
4) work temperature : - 40 C -- + 80 C |
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