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What are forward- and backward-reading scanners? How do they differ from other scanners?

April 26, 2017differ forward- scanners

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What are forward- and backward-reading scanners? How do they differ from other scanners?

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Forward-reading scanners only detect 134.2 kHz (ISO standard) microchips, but will not detect 125 kHz or 128 kHz (non-ISO standard) microchips. Forward- and backward-reading scanners detect all microchip frequencies. The main advantage of forward- and backward-reading scanners is the improved chances of detecting and reading a microchip, regardless of the frequency.