NB-WM420 is a cost-effective wireless inclinometer sensor designed for remote real-time monitoring and analysis of uneven settlement and tilting deformation of buildings, ancient architecture, and towers. The sensor supports both NB-loT and GSM network modes and offers high accuracy and long-term stability.
The document is a technical user manual for the BW Sensing NB-WM420 Series Wireless Inclinometer Sensor V3.0. It describes the product's features, including support for NB-IoT and GSM networks, high precision (0.05°), low power consumption, and long battery life. The sensor is designed for remote real-time monitoring of structural deformation in applications such as dangerous buildings, bridges, dams, and tunnels. This manual is written in Chinese.
| Accuracy | 0.05° |
|---|---|
| Resolution | 0.001° |
| Measurement Range | ±60° |
| Cross-axis Error | < 0.01° |
| Battery Capacity | 6000mAh |
| Standby Current | 4μA |
| Protection Rating | IP65 |
The sensor supports both NB-IoT and GSM network modes.
The device can operate for several years without changing the battery due to its low power consumption and optimized internal circuits.
The charging voltage for the built-in rechargeable lithium battery is 4.2V DC.