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.
