The MT115 is a high-precision meter that simultaneously measures pH and temperature in various solutions, making it ideal for pool maintenance, industrial, agricultural, medical, food quality, research, and environmental applications. It features an LCD colour backlit display with data hold, retains memory even after power-off, and allows toggling between °C and °F. The meter automatically compensates for temperature variations to ensure accurate pH readings, identifies calibration solutions, and includes a battery indicator for remaining battery life. It also has an automatic power-off function after 10 minutes of inactivity, a red backlight alarm for pH levels below 3.5 or above 11.5, and indicates stable and reliable measurements.