Pyser-SGI offer a large range of Counting Chambers including our grid marked Sedgewick Rafter counting chamber, in both plastic and durable glass versions, and the renowned Howard Cell with it's unique cover glass. Also included are many haemocytometer, parasitology, cytology and semen chambers.
The Segewick Rafter chambers are excellent for determining counts in known volumes of sample, see: (Sedgewick Rafter - technical data). These chambers have also found use for in-vitro fertilisation studies, and various papers have been written.
The Pyser-SGI Howard Cell is used for spore counting in tomato and fruit juice, see: (Howard Cell - technical data)
Our new Counting Chambers catalogue is available as a pdf document.