Well my new 50 gallon tank just blew

[Jack]

From the Tunze website:

" If Red LED „Too high“ and red LED „Too low“ are lit and are flashing simultaneously = Water has penetrated into the controller and has switched off all functions. Open the device (see overleaf); dry the PCB and clean, if and when necessary. If both LEDs light up again after some hours, residual salts and high humidity may be the cause. The device has to be examined in a specialised workshop."

Where can I easily get this electronic cleaner stuff?