... 2.0-9.0(2.0, 2.5,3.0,3.5,4.0,4.5,5.0,5.5,6.0,6.5,7.0,7.5,8.0,8 ... .5,9.0 ... pH test strip.squre pack size: 5.4*1.4*8.3cm,weight:40g,80or 100pieces/packWe are gold credit supplier ... .25, 6.5, 6.75, 7.0, 7.25, 7.5, 8.0, 8.5, 9.0 used in Home Healthcare ,Test yourself saliva or ... ,wealth,credit and culture! pH test strip 4.5-5.0