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Designed and manufactured by Foster + Freeman, the TFD-2 marks a breakthrough in the detection and enhancement of latent fingerprints using non-destructive thermal development.
The first of its kind, the TFD-2 is an automated, high-throughput device capable of developing fingerprints on large quantities of documents, dramatically reducing examination time and manpower requirements.
The simple process of heating a document to an optimum temperature induces a chemical reaction between the latent fingerprint and the paper to produce a fluorescent by-product that is visible under intense blue or blue/green illumination when viewed through an appropriate filter.
Controls maintain the optimum heating temperature and carriage speed to ensure that documents are undamaged. Developed fingerprints remain visible for more than 2 years.
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