pH accuracy to ±0.25
Provides sharp color change for each 0.5pH unit. Consists of A979 wide-range paper for determining approximate pH value and six specific short-range papers.
Each paper comes in 15 ft.L × 0.25 in. W (4.6m × 6.4mm) roll with its own plastic dispenser. Appropriate color chart mounted inside. Seven rolls packed in hinged plastic box. Replacement short-range paper rolls available separately.