Single-Parameter Water Quality Online Monitor Product Introduction: 

External dot-matrix LCD screen with backlight for clear display; internal core components sourced from renowned international brands; supports RS-485 communication interface and standard MODBUS-RTU protocol; IoT-compatible; includes online acquisition software for data collection and processing; built-in watchdog function to prevent system crashes. Designed for major clients with expanded channels, capable of monitoring 1 parameter and providing 2 channels of 4~20mA signal output. Wall-mounted installation, widely favored by customers. Technical Specifications Dimensions: 500mm x 350mm x 180mm Operating Environment: Temperature 0~60°C, Relative Humidity ≤90% Operating Voltage: AC 220V±10% 50/60Hz or DC 24V.