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What does the suffix TT or TF following an inductive proximity sensor part number indicate?

An inductive proximity sensor part number with a suffix TT or TF indicates that the product is a special version for high or low temperature as follows;

TT suffix;
This is the high ambient temperature version. Ambient temperature range -25oC to +85oC

TF suffix;
This is the low ambient temperature version. Ambient temperature range -40oC to +70oC

Please note: Only certain products are available in these special versions.
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