Renesas' quick solutions feature a reference design for a water quality tester that utilizes the RL78/G11 allowing for quick detection of hazardous substances in water such as total dissolved solids (TDS). Utilizing an LCD display, the measured value will display on the design and can be saved to the device. The temperature can also be displayed. This solution features the RL78/G11 MCU, a temperature sensor, a TDS test probe, an LCD panel, and a power supply.