Comment on Why you should use four different digits for keypad locksparentComments−KafkaOP16yAn even more sinister approach would be to use an infrared meter a couple of seconds after someone just touched the keypad.−tesseract16yI wonder whether any of the FLIR imagers that are currently commercially available and reasonably portable are sensitive enough to make this work. Any links?
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An even more sinister approach would be to use an infrared meter a couple of seconds after someone just touched the keypad.
I wonder whether any of the FLIR imagers that are currently commercially available and reasonably portable are sensitive enough to make this work. Any links?