GPRS wireless sensor

GPRS wireless sensors use China Mobile or China Unicom's GPRS wireless network to send remote sensor data to a centralized monitoring center. Mature application in wireless sensor networks for pipeline pressure, liquid level, temperature, flow, etc. The combination of GPRS, SMS, and telephone triple communication solves the instability problem of traditional GPRS modules. Even if the GPRS network is interrupted, remote SMS queries and over limit alarms of sensor data can be achieved through SMS or phone calls.