57mm solo dittokey reader

The 57mm Solo Key Reader is the perfect solution for ingle seat aircraft where a standard 57mm instrument hole is available. The LED indicator signals when the pilot should insert the key. If you will not be paying for the flight, insert the key when the led is off . (it flashes on/off quite slowly). You will hear a long ‘beeeeep’ which indicates ‘freeeeee’ . Insert the key when the LED is on and you will hear ‘ beep beep’ which indicates , “you pay’. In those aircarft where panel space is a ta a premium, look at our ‘behind panel’ solution