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- Stage-by-stage sound alarm
- Digital colors LED display
- Sensor style and color optional
- 2, 4, 6 and 8 sensors system optional
- Human voice alarm optional
- Anti-freezing, rainy-proof design, work well under extreme cold weather
- Display distance: 2.0 to 0.4m
- Alarm distance: 1.5 to 0.4m
- Alarm voice: 80dB
- Working voltage: 12¡À2V DC
- Maximum power: <5W
- Working temperature: -40 to +80¡ãC
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