Hikvision AX Pro DS-PDMCS-EG2-WE Wireless Slim Magnetic Contact Detector Alarm
Wireless Slim Magnet Detector. LED Indicator: Blue (alarm). Signal Strength Indicator: Supported. Transmission Technology: Tri-X Wireless. Magnet: 14 mm × 69 mm × 10 mm. Transmission Frequency: 868 MHz.