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DFO/Ninhydrin/Indandione development cabinets
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DFO/Ninhydrin/Indandione development cabinets


The Attestor Forensic NINcha cabinets offer a high performance climate chamber for developing fingerprints on porous and semi porous materials such as paper when working with DFO, Ninhydrin and Indandione.

With the NINcha series, Attestor Forensics offers three different sizes of climate chambers, especially designed for the development of chemically treated fingerprints with either Ninhydrin, DFO or Indandione.

NINcha provides a user friendly, multilingual touch panel control with a USB data logger and a novel and innovative air stream concept. In difference to many other climate chambers, NINcha monitors and controls the temperature and humidity not directly in the air stream at the air outlets but uses actual values inside the cabinet. For a forensic climate chamber it is important, that it can be easily cleaned and kept free from DNA contamination. NINcha therefore features an integrated air filter system, which reduces the amount of airborne dust from samples that might be loaded with the development chemical. Any area that comes in contact with the air stream is easily accessible for cleaning off remaining Ninhydrin or DFO particles. This limits the risk if cross-influencing of the various chemicals used and reduces the cleaning effort. Many other features round off the innovative NINcha concept. 


Key advances of the NINCha include:-

Rapid fingerprint processing with high workflow rates Fast recovery times in less than 5 minutes for Ninhydrin, DFO and Indandione.  In built boost mode within the software provides super fast development of prints in line with the UK home office requirements. Operates within UK FVM requirements at 80 Celsius and 62 % RH.

Pre-Programmed Treatment Cycles for Ninhydrin, DFO and Indandione ensure simple operation and consistently high quality of evidence development. Parameters and timers can be adjusted by a user to his demands. In addition a manual mode is available.  

USB Data Logger  Records date , time, temperature and humidity settings in 30 second intervals.  Data can be plotted graphically.  


Variable Shelving Concept The carriers on the inner sides of the chamber are suitable for the usage with easy to clean metal grills and hanging rods.   

Air Filter and  External Ventilation In order to limit cross-contamination and reduce the cleaning requirements, a special air filter system has been integrated into the cabinet to clean out chemical loaded evidence abrasion particles or dust. The filters are coded to prevent the use of Ninhydrin, DFO or Indandione filter units with the wrong process. Alternatively or additionally, the cabinet can be upgraded for external ventilation with process controlled air inflow and exhaust valves.  

UV-Decontamination Unit For easy elimination of DNA inside the cabinet, a short wave UV illumination unit can be fitted. The control system automatically detects, when the unit is placed inside.  

Water Supply and Drainage  Integrated into the cabinet is a tank for distilled water as well as a container for accumulated condensed water. The touch panel display informs the user about a due re-fill or drainage.  

Deflagration Protection  A novel locking mechanism for the door prevents too high pressure inside the cabinet, built up e.g. by steam pressure to escape for increased user safety. The door opens to the right by default. On request it can also be offered with hinges on the left side. 

Easy clean design   The innovative design makes the cleaning and maintenance of the NINcha system very simple

Clear visibility on the evidence at all times   The unique design prevents condensation build up on the window allowing the user to monitor the development process at all times

Low cost of ownership The system is very simple and easy to maintain.  The system is built from durable stainless steel which will not rust and provide many years of operation. Annual calibration costs are also very low.


4 sizes are available in the following dimensions:

  • NINcha P31 - Portable version built in Peli case (click here for more details)
  • NINcha S31 - Small 105 x 70 x 60 cm (with adjustable legs)
  • NINcha M31 - Medium 185 x 70 x 60 (on castors)
  • NINcha L31 - Large 205 x 70 x 60 cm (on castors)


View / Download the datasheet

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