ZKTeco Magnetic Door Sensor for Sensing Open/Closed Door Status AS31

ZKTeco AS31 is a magnetic door sensor used in access control and alarm systems to detect the open or closed status of doors or windows. It works using a magnetic contact mechanism and sends a signal when the door is opened. The device is commonly used in offices, residential buildings, and security systems for monitoring entry points and triggering alarms.

Features

• Magnetic door sensor
• Detects door open/close status
• Normally closed (NC) output
• Supports alarm integration
• Compact and durable design
• Suitable for door and window installation