ESDA is the leading technoligy for detecting indented writing on questioned documents. ESDA works by creating an invisible electrostatic image of indented writing, which is then visualised by the application of charge sensitive toners. The sensitive imaging process reacts to sites of interaction with overlying surfaces during the act of handwriting.

ESDA is the ideal forensic tool. As well as being simple to operate, it produces positive, live-size transparencies of indented writing without damage or contamination to original documents and without interferences to other forensic tests, and documents may be processed repeatedly without loss of sensitivity.

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- simple to operate
- stainless steel mesh document examination bed
- A3 document bed removable and replaceable for
- air filter system for excess toner
- Timer control for charge and settlement time

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