This is a magnetic door contact sensor featuring LoRaWAN wireless transmission. It is used to detect the opening status of a door or cabinet and then wireless transmit signal to gateway and cloud.

• Magnetic door contact sensor, triggers alarm on door opening
• Temperature (-30~70°C)
• Humidity (0% ~ 100%)
• IP67 waterproof
• Long range wireless transmission (15 km in rural areas and 2 km in urban areas)
• Up to 10 Years Battery Life
• NFC wireless for easy configuration
• Dimension 120.1 × 120.1 × 55.4 mm (4.73 × 4.73 × 2.18 in)
• Support wall mount or pole mount
It is a perfect bundle of water meter/gas meter/flow meter when long range wireless transmission is required.