Set of 4 colour filters for Colorimeter (3275)
Replacement colour filters for the Colorimeter. The slides are 35 mm; colours are (1) Red (630nm), (2) Green (560nm) (3) Amber (600nm) and (4) Blue (470nm).
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The Vision data logger is marvellous, it is used several times a week, very popular.
Karen Vidler (Billericay School, Essex, CM12 9LH)
Data Harvest Group Ltd.
Tel: +44 (0) 1525 373666
© Data Harvest Group Ltd. 2014