The Browan Door and Window Sensor, US915 (TBDW-100-915) is a compact LoRaWAN open/close sensor that reports door and window status in real time. A Hall-effect sensor detects the included magnet within 1 cm, instantly reporting every open/close event along with an event counter and battery status — ideal for security, access monitoring, and smart-building automation.

Key specifications

• Hall-effect magnetic contact sensor; 1 cm detection range; magnet included
• Instant uplink on every open/close event, plus open-event counting and battery status
• LoRaWAN 1.0.3, US915 band (902–928 MHz), +19 dBm TX power
• Battery: 3.6 V ½ AA Li-SOCl₂, 1,200 mAh — up to 16 months lifetime
• Compact 50 x 20 x 50 mm housing, 40 g with battery; IP50 equivalent
• Operating temperature 0 to 50°C
• Type approvals: CE / FCC / IC

Two-part design (sensor + magnet) mounts discreetly on any frame; works with any US915 LoRaWAN network server.