["The Milesight TS301-868M is a reliable LoRaWAN sensor for monitoring doors and windows. Thanks to its compact design and energy-efficient wireless design, it is ideal for security and access control systems in residential and commercial buildings. Ideal for security applications monitoring doors and windows in offices, residential buildings and industrial facilities. Supports smart building and access control systems with reliable status transmission", "LoRaWAN communication (868 MHz) for wireless transmission", "Magnetic contact for detecting door and window conditions", "Compact and unobtrusive design for discreet installation", "Long battery life – up to 10 years (depending on usage)", "Easy to install using adhesive or screw fastening", "Compatible with Milesight IoT Cloud, TTN, Helium & Co", "Frequency range: 863-870 MHz (EU868)", "Sensor technology: magnetic contact", "Detection range: up to 20 mm (contact open/closed)", "Power supply: 2x 3.6 V ER14505 Li-SOCl2 batteries (replaceable)", "Battery life: Up to 10 years (depending on interval and usage)", "Communication range: Up to 15 km (open field)", "Protection class: IP30 (indoor area)", "Temperature range: -20°C to +60°C", "Dimensions: 80 × 20 × 15mm", "Weight: approx. 30g", "Mounting: adhesive or screw mounting", "Configuration: USB-C, NFC or ToolBox app", "Compatibility: LoRaWAN 1.0.2 / 1.0.3"]