The continuously operating Nutradip Trimeter is a high-quality, easy-to-use meter that tests pH, TDS and nutrient temperature. Customers can simply plug the unit into the wall, drop the probe into their reservoir, and wait for the meter to return temperature-compensated readings in minutes. The Trimeter measures pH from 0.0-14.0 with a resolution of 0.1 pH, nutrient TDS from 0-9990 ppm with a resolution of 1 ppm, and nutrient temperature from 40-90° F. and 5-32° C. with a resolution of 1°C. and 1°F. The Trimeter is highly accurate, with a pH accuracy of ±0.1, a TDS accuracy of ±2% and a temperature accuracy of ±1° C. or F. The Nutradip Trimeter also comes with a long-lasting replaceable remote probe.