... .pH value 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)In triplicate color ... ,rain,acidic and alkaline pH test strip.squre pack size: 5.4*1.4*8.3cm,weight:40g,80or 100pieces/packWe ... pH strips 4.5, 5.0,5.5, 5.75, 6.0, 6.25, 6.5, 6.75, 7.0, 7.25, 7.5, 8.0, 8.5, 9.0 used in Home ... catching health,wealth,credit and culture! pH test strip 4.5-5.0