Mother's Day Sale- Test Kit Hardness Alkalinity Pool 5 Spa in1 PH Strips Water Swimming

Convenient to use. Range: 0 ~ 10 Used in swimming pools, spas and other industries. Item test the PH, residual , , total , total alkalinity and total hardness in water by colorimetric method. PH Range: 6. 8 ~ 8. 4 50pcs x Water Test Strips Total Hardness: 0 ~ 100 Quickly color displayed in photos may be showing slightly different on your computer since monitors are not calibrated same. Total Alkalinity: 0 ~ 240 Range: 0~22 High precision. Total Range: 0~10 Quantity: 50pcs/box