The brightness of the display panel can be adjusted as the displays are big enough to read even from a distance. 24/7 nutrient monitor is insulated with RF shielded wires for complete accuracy. The parameters are shown in green color. There are selective values for measuring conductivity and temperature. This model is water resistant. Settings are retained when power goes off and international power supply. Silent alarm is set for both low and high settings. For pH calibration, simple push button enhanced.