AN-204A wireless water immersion alarm

AN-204A is a wireless water immersion alarm independently developed by Weichuan Technology based on the standard LoRaWAN protocol. The product consists of two parts: a data acquisition box and a water immersion sensor. The water immersion sensor uses the principle of liquid conductivity and uses four probes to detect water leakage. Normally, the two poles of the probe are insulated by air, and when the probe is immersed in water, it conducts and generates an alarm signal. It can detect water leakage events with high sensitivity and accuracy. The cable length can be customized according to customer needs; The data acquisition box is equipped with a LoRa module and a large capacity battery, coupled with an external omnidirectional antenna, which can better transmit and receive LoRa wireless signals and improve signal transmission distance. The AN-204A adopts a low-power integrated design, with a device lifespan and service cycle of over ten years, and significantly reduced battery replacement frequency; The shell is designed with nylon and fiberglass material, which is sturdy and durable, supporting IP67 protection level, and can be used in harsh environmental conditions. Widely applicable to scenarios such as property fire protection, communication base stations, precision computer rooms, libraries, exhibition halls, museums, etc.