Hikvision DS-PM1-RT-HWB AX Hybrid 433MHz Tri-X Wireless Receiver

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• High quality Omni-directional microphone sensor
• Up to 8m/120° detection coverage
• Selectable EOL resistors（Alarm Resistance: 1K, 2K2, 4K7, 5K6, 6K8)
• 9-16 VDC wide voltage adaptation with polarity reverse connection protection