SDS-200 Door contact sensor detects when doors and windows are open or closed. It is a peripheral security sensor that sends alerts to Syscall receivers. Able to detect open state of doors only or both open and close. We are online Now! How can we assist you? WhatsApp Call Now Home » Products » Transmitter » Sensor Bell » SDS-200 Related Product Light IndicatorSLL-400 Light IndicatorSRL-300 PagerSB-700 Display MonitorSR-A Series Product Detail View PRODUCT SPECIFICATION Description Door contact sensor detects when doors and windows are open or closed. It is a peripheral security sensor that sends alerts to Syscall receivers. Able to detect open state of doors only or both open and close. It can be used when access to restricted area is detected or when guest visit notification is required. Specification DimensionMain: W70 x L40 x H26mmMagnet: W70 x L16 x H20mmNet Weight55g/15gFrequency RangeFSK/433.42MHzPower SourceBattery(CR123A)CompatibilityAll Syscall receivers Features External antenna improves wireless range LED indicator blink when the door is open or closed LED will blink continuously for low battery notification 3 types available A type: Detects when door is open (call) B type: Detects when door is open (call) and closed (clear) C type: Detects when door is open (clear) and closed (call) Benefits Enhance Security Maintain the Safety Real-time Monitoring System Keep the Criminals Away System Map When the door is open or closed, it sends alerts to Syscall receiver. Available Receivers: SR-A series, Direct pagers and Light indicator