Hikvision DS-PDBG8-EG2
Wired Glass Break Detector
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