
Online Dissolved Oxygen Transmitter Analyzer Controller DO Meter. Wide Application Scope: Suitable for power plants, metallurgy, mining, paper, bio-fermentation, medicine, food, water treatment, and aquaculture. Intelligent Display & Control: Color LCD display with intelligent menu, data recording, curve display, and password protection against misoperation. Multiple Output Modes: Supports 4-20mA current output (0/4~20mA or 20~4mA) and RS485 MODBUS RTU communication. Robust Relay Control: Equipped with three sets of relay control contacts (5A 250VAC, 5A 30VDC) for high/low alarm and hysteresis control. Flexible Customization: Supports OEM/ODM services, including customization from samples, designs, full customization, and minor adjustments. Comprehensive Warranty: 1-year warranty with lifelong free technical support and guidance. Response time within 3 hours.