Dual output for flexible control and monitoring - DO TTL switching signal output and AO analog signal output provide both digital control and analog measurement in one unit. Analog output that follows concentration - The AO output voltage changes with concentration, enabling real-time monitoring. - Fast response and quick recovery ensure stable readings and prompt system adjustment after changes. Robust, clear status indicators - High-quality double-panel design with a power indicator and a TTL signal output indicator for easy at-a-glance status checks. Easy integration with low-level TTL - TTL output with low level can be connected directly to microcontrollers or relay modules without extra interfaces. Use scenarios - Laboratory data acquisition: connect AO to a data acquisition system for continuous concentration reading and use DO TTL to trigger alerts or actuate devices when needed. - Microcontroller projects: integrate with a microcontroller to automate actions based on concentration readings from AO and controlled via DO TTL. - Automation and control systems: interface with relay modules or simple controllers to drive processes based on TTL signals from the unit.