The tester is used to measure the values of pH and active oxygen in swimming pools and hot tubs.
Measurement is very easy and fast.
Please note that the values of active oxygen are measured 1-2 hours after you put the product in the spa.
Otherwise, the result will not be correct.
Package contents:
- 1 pcs. pH and active oxygen tester
- 40 pcs. reagents: 20 pcs. DPD 4 (active oxygen) and 20 pcs. Phenol Red (pH)
- Manufacturer: Water ID, Germany



