| Dennerle is setting new standards in the control of CO2 supply for aquaria with the Evolution DeLuxe pH controller. This precision device developed in-house by Dennerle measure the pH value in the aquarium continuously by electronic means and control the supply of CO2 automatically via a CO2 solenoid valve (accessorie). Dennerle pH Controller Evolution DeLuxe offers the ultimate in functionality, reliability and user-friendliness. Using the device is simplicity itself: 1 button = 1 function. An indicator lamp shows whether CO2 is being supplied. If the actual pH value in the aquarium differs from the set value by more than +/- pH 0.5, the controller's display will immediately flash an alarm signal. The calibration reminder function automatically reminds the user to calibrate the pH electrode on a regular basis every 4 weeks - this is necessary to ensure reliable measurement results at all times. The user-friendly calibration process is absolute child's play: Place the pH electrode in the calibrating solution - press the button - and that's it! The dimmable display can be adjusted perfectly to the ambient light conditions. A keypad lock prevents unintentional alteration of the settings (child-proof safety lock). Dennerle pH Controller Evolution DeLuxe: + Acoustic alarm: Can be activated as a supplementary function. This is expedient when the pH controller is installed in the base cabinet of the aquarium, for example. + The switching values at which the pH controller is to activate and deactivate the supply of CO2 can be selected by the user. + Automatic pH setting. After entering the carbonate hardness of the aquarium water, the pH controller calculates the corresponding pH value (CO2 content) automatically and controls the CO2 supply accordingly. The ultimate in simplicity and reliability. Scope of delivery: + pH-Controller Evolution DeLuxe + Profi-Line pH electrode + Electrode holder + pH 4 calibrating solution, 50 ml + pH 7 calibrating solution, 50 ml + Aqua dest., 250 ml + Calibrating station |