Wireless door opening detector WS301

magnet contact

Product overview
WS301 is a compact magnetic contact switch for monitoring open/close status of doors and windows. It supports tamper detection, NFC configuration, LoRaWAN® connectivity and Milesight D2D communication to enable flexible deployment in security, access monitoring and building automation systems.

Key features

• Magnetic contact detection for door and window open/close status
• Tamper detection (dismount alarm) to notify unauthorized removal attempts
• Long battery life with 1 × 1200 mAh ER14250 Li-SOCl2 (multi-year operation depending on configuration and region)
• NFC-based configuration for fast wireless setup and activation
• LoRaWAN® connectivity (OTAA/ABP, Class A) for wide-area network integration
• Milesight D2D (Device-to-Device) communication for direct interaction with compatible Milesight nodes and controllers
• Compact form factor and multiple mounting options (3M tape or screws)
• Visual status/alarm LED indicator

NFC configuration (quick steps)

• Install the Milesight ToolBox app on your mobile device
• Enable NFC, open the ToolBox app and hold the phone to the device
• Verify password and apply configuration parameters

Installation

• Mount on flat surfaces using screws
• Mount on flat surfaces using double-sided 3M tape

LoRaWAN® and connectivity

• Standard LoRaWAN® operation (OTAA / ABP, Class A)
• High compatibility with standard LoRaWAN® gateways and network servers
• Indoor and outdoor range depend on region and environment; D2D enables device-to-device interactions without a gateway when used with appropriate Milesight controllers/agents

Cloud & Management

• Compatible with cloud and device platforms for visualization, triggers, reports and mobile management
• Supports OTA workflows and scene-based automation when integrated with a compatible IoT platform

Applications / Example solution

• Smart restroom monitoring (door state and tamper alerts)
• Access monitoring for offices, cabinets, windows and other entry points
• Integration into building automation, security and facility management workflows

Technical specifications

• Wireless Transmission: Technology: LoRaWAN® , Milesight D2D
• Wireless Transmission: Antenna: Internal Antenna
• Wireless Transmission: Frequency: CN470 / IN865 / RU864 / EU868 / US915 / AU915 / KR920 / AS923
• Wireless Transmission: Tx Power: 16 dBm (868 MHz) / 22 dBm (915 MHz) / 19 dBm (470 MHz)
• Wireless Transmission: Sensitivity: -137 dBm @300bps
• Wireless Transmission: Mode: OTAA / ABP Class A
• Measurement: Detection distance: 10-15 mm
• Others: Buttons: 1 × Reset Button (internal), 1 × Tamper Button
• Others: LED Indicator: 1 × Status / Alarm Indicator
• Software: Configuration: NFC configuration via mobile app (ToolBox)
• Software: Advanced features: Milesight D2D Controller, Tamper alarm, Open/Close status alarm
• Physical: Power supply: 1 × 1200 mAh ER14250 Li-SOCl2 battery
• Physical: Battery life*: Around 6.8 Years (SF7, EU868); Around 4.2 Years (SF10, EU868); Around 6.8 Years (SF7, US915); Around 3.5 Years (SF10, US915) (typical test profile: 1080 min interval + 30 triggers/day at 25°C)
• Physical: Operating temperature: -20°C to +60°C
• Physical: Relative humidity: ≤90% (non-condensing)
• Physical: Ingress protection: IP20
• Physical: Color: White
• Physical: Weight: Sensor: 27.9 g (battery included); Magnet: 13.7 g
• Physical: Dimension: Sensor: 50.5 × 31 × 18.5 mm; Magnet: 50.5 × 13.5 × 13 mm
• Physical: Installation: On flat surfaces with screws or 3M tape
• Approvals: Regulatory: CE, FCC, Telec, LoRaWAN® Certified, ISED
• Approvals: Environmental: RoHS

*Battery life tested under laboratory conditions and provided for guideline purposes only.