LoRaWAN® Magnetic Contact Switch, US915
The Milesight MS-WS301-915M is a LoRaWAN® magnetic contact sensor that reports door and window open/close status, with a tamper alarm and years of battery life.
Detects door and window status with a 10–15 mm magnet gap.
A tamper button raises an alarm if the sensor is removed or opened.
A 1,200 mAh battery lasts around 6.8 years (SF7, US915, 1080-min reports, 30 triggers a day).
| Wireless | LoRaWAN®; Milesight D2D |
|---|---|
| Frequency | US915 |
| Tx Power | 22 dBm (915 MHz) |
| Sensitivity | –137 dBm @ 300 bps |
| Detection Distance | 10–15 mm |
| Alarms | Open/close status alarm; tamper alarm |
| Configuration | NFC via mobile app |
| Advanced Feature | Milesight D2D controller |
| Power | 1 × 1,200 mAh ER14250 Li-SOCl₂ battery |
| Battery Life | Around 6.8 years (SF7, US915; 1080-min reports, 30 triggers/day) |
| Environment | IP20; –20 °C to +60 °C (–4 °F to +140 °F) |
| Dimensions | Sensor 50.5 × 31 × 18.5 mm (1.99 × 1.22 × 0.73 in); magnet 30 × 13.5 × 10 mm (1.18 × 0.53 × 0.39 in) |
| Weight | Sensor 27.9 g (with battery); magnet 4.1 g |
| Installation | Screws or 3M tape |
| Certifications | CE, FCC, LoRaWAN® Certified |
