Meter V1.0 development board — Total Dissolved Solids (TDS) measurement Key benefits and how it solves problems Reliable longterm measurements: The included waterproof probe can be immersed for extended periods, enabling continuous monitoring without frequent replacement or maintenance. Reduced probe polarization and drift: An AC excitation source is used to minimize probe polarization, improving stability and accuracy over time compared with DCexcited probes. Broad system compatibility: The board accepts a wide supply voltage (3.3V–5.5V) and provides a 0–3.3V analog output that is compatible with both 5V and 3.3V control systems, simplifying integration with common microcontrollers and data acquisition systems. Simple integration: Direct analog output (0–3.3V) feeds into any ADCequipped controller, making it easy to add TDS sensing to development projects or monitoring systems. Important attributes Function: Measures total dissolved solids (TDS) in water using an ACexcited probe and outputs an analog voltage proportional to the measured value. Power: Wide voltage operation from 3.3V to 5.5V for flexible powering from typical microcontroller platforms. Output: 0–3.3V analog output designed for direct connection to ADC inputs on both 3.3V and 5V systems. Probe: Waterproof design suitable for longterm immersion and continuous measurement. Performance: AC excitation reduces probe polarization and measurement drift, improving longterm stability. Practical applications Aquariums and hydroponics: Monitor nutrient concentration and water quality continuously to maintain stable conditions for fish and plants. Field or lab water testing: Deploy for routine water quality checks or prototype development where a waterproof, easytointegrate TDS sensor is required. Process monitoring and development boards: Integrate into industrial or research prototypes that need an inline TDS measurement with straightforward analog interfacing. What you get Meter V1.0 development board for TDS measurement with AC excitation Waterproof immersion probe suitable for longterm use 0–3.3V analog output and 3.3V–5.5V power compatibility for easy integration into existing control systems Notes for integration Connect the 0–3.3V analog output to an ADC input on your controller. Power the board within the specified 3.3V–5.5V range. Use the ACexcited probe for continuous immersion tasks to benefit from reduced polarization and improved stability.