Model: DBC-9D (4 Functions) Digital Differential Blood Cell Counter DBC-9D is used in hematology to classify and count white blood cells. Features: 1. Digisystem Digital Blood Cell Counter DBC-9D use microprocessor controlled system which offers accurate and simple counts. 2. 8 buttons have red and white colors in sequence for identification. 3. Each button has a 3-digit LCD window. One 3-digit LCD window is for the total amount. 4. Cell pictures for BASO., EOSIN., MYELO., JUVEN., STAB., SEG., LYMPH., MONO., are labeled. 5. A click sound on each touch to confirm the count. 6. At one hundred increment of the total amount, a short beep sound is heard. 7. Push the percent (%) button to calculate percentages, and push the reset button to clear the counts. Push the +/- button can increase or decrease the counts. Push the function (FUN.) button to adjust the contrast and to monitor the battery energy. 8. The power supply can be 100~240V or 2 pcs of AA battery. 9. Quality certification: ISO 9001, ISO 13485 Specification: 1. Model DBC-9D 2. Number of button 8 3. Number of window 9 x 3-digit LCD window (including one window for total amount) 4. Function button 4 function buttons (+/-, %, RESET, FUN.) 5. Standard accessory 3.3V 1.2A switching adapter 6. Weight N.W. 350g/G.W. 620g 7. Dimension (mm)(WxDxH) 245×94×48 8. Power supply 100~240V 50/60Hz or 2pcs of AA battery (note: batteries are not supplied)