The Novitek chlorine tester is used to measure the pH balance and chlorine in hot tub water. The kit contains a test jar, 20 pcs phenol red tablets to measure pH, and 20 pcs DPD tablets to measure chlorine levels.

Instructions for use:

• Place the tablets in their own blocks in the tester, and draw water from the pool into the test jar.
• When dissolved, the tablets will colour the water and an illustrative scale on the side of the tester will indicate which pH and chlorine value corresponds to which colour.