Manual Differential Counters, Benchtop

Mechanical, benchtop counters are perfect for blood cells (label included), bacterial colonies or other repetitive counting Each key records up to 999 Total window keeps track of total number of strokes made on all other keys; bell rings when total reaches 100 Blood cell key labels HS5360A (6 Key) Baso., Eosin., Mono., Lymph., Poly., and Total Dimensions L x W x H:  9.8 x 3 x 2.2 in (25 x 7.6 x 5.6 cm) HS5360B (9 Key) Baso, Eosin., Myelo., Juven., Stab., Seg., Lymph., Mono., and Total Dimensions L x W x H:  12.5 x 3 x 2.2 in (32 x 7.6 x 5.6 cm)