The solar powered ammonia nitrogen sensor is an environmental sensing device used for real-time monitoring of ammonia nitrogen concentration in water bodies. It is powered by efficient solar cells, completely freeing itself from the constraints of wiring and power supply, and can be deployed in any outdoor water area. This sensor has high-precision measurement, wireless data transmission, and self-cleaning and anti pollution capabilities, which can effectively provide unmanned and low maintenance accurate water quality solutions for fields such as river and lake monitoring and aquaculture.

ZW-NHN-PRA is an integrated online ammonia nitrogen sensor based on a PVC membrane ammonium ion-selective electrode. It features real-time temperature compensation for fast, simple, accurate and cost-effective measurement of ammonium ions in water. The sensor supports RS‑485 and Modbus/RTU for easy integration with PLC, DCS, industrial controllers and other third‑party devices. Its patented ion probe with a slow‑leak reference system ensures high stability and extended electrode life. With 3/4 NPT threads and IP68 protection, the sensor enables easy installation in submerged, pipeline or tank environments.