WLS-15-NBIOT is a wireless water leak sensor that is designed to monitor water level and raise an alarm when high water level is detected. It is a perfect solution of monitoring water leaks in basement, garage, bathroom and kitchen or any place water leakage might occur. WLS-15-NBIOT incorporates NB-IoT technology and can send status or alarm signals to the system server via NB-IoT network, providing users system deployment flexibility.