Jlab BLOOD CELL COUNTER 5 Key

Features : Blood Cell Counter 6 Unit, Clay Adams Type. For blood cell counting and simple computations, including percentage. Each unit counts upto 999 and last unit totalizes the different cells. A bell automatically sounds at every hundred. It has 5 keys and totalizer with dual knob on both ends to facilitate easy resetting Supplied with safe transit packing and storage when not is use.