This Ammonia (NH3) Gas Detector provides accurate gas concentration monitoring with support for Modbus RTU (RS485) or Analog Output (0–10V / 4–20mA). Powered by a 5V DC supply, it is suitable for industrial safety, ventilation control, cold storage, agriculture, and environmental monitoring applications. Designed for stable performance and long-term reliability, it integrates easily with PLC, SCADA, BMS, and IoT systems.