Industrial Digital ORP Sensor Specifications
Engineered for precision in harsh environments, the LT4900I digital ORP sensor integrates a built-in microprocessor to deliver direct MODBUS RTU RS485 communication, ensuring exceptionally strong resistance to electrical interference. This robust probe provides a broad measurement range of -2000mV to 2000mV, operating seamlessly in temperatures from 0 to 100°C and withstanding pipeline pressures up to 6 Bar. Constructed with a heavy-duty POM and glass shell, it utilizes a PCG polymerized gel and a double liquid junction design with a specialized porous ceramic core, guaranteeing high accuracy, a factory slope better than 95%, an IP68 waterproof rating, and a rapid response time of under 10 seconds.
RS485 Wastewater Redox Probe Applications
Designed with a standard NPT 3/4 thread for direct process installation, this all-in-one water quality analyzer is the premier choice for highly complex industrial sites. Beyond standard environmentally friendly surface water monitoring, it excels in heavy-duty sewage and wastewater treatment, large-scale equipment support systems, and commercial swimming pools. To accommodate diverse vessel constraints, the electrode offers exceptional expansion capabilities, including a fully customizable insertion depth (standard 90mm), upgrades to a double or triple-point porous ceramic core, and an integrated direct-connection cable that can be safely extended up to 100 meters without signal loss.



