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Use uDemo to Poll Card Reader: 
You can use the uDemo tool to execute a command to Poll Card Reader. Look
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for "DATA_DUKPT Key Valid". This means your reader is injected with a data encryption key.
Use uDemo to run a transaction and then look for Encrypted data or a KSN:
In uDemo, execute a Start MSR command (1), then swipe a card. Look for "Track 1 Encrypted" (2) or "Track 2 Encrypted" (3) or "KSN:" (4) or "Encryption Type:" and "Key Type:" (5).
See also:
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