This refill set of test pills is compatible with the Pool Lab 1.0 digital pool tester. This refill set includes 70 spare tablets. 1 tablet is good for 1 measurement.
Below is the composition of the refill set once again:
20 x DPD No.1 tablets (free chlorine)
20 x Phenol Red tablets (pH)
10 x DPD No.3 tablets (total chlorine)
10 x Alk tablets (alkalinity)
10 x CyA tablets (stabilisation)