A: PH Tester (one bottle of test solution + one test tube) B: NO2 Tester (3 test tubes, each can be tested once)
C: NO3 Tester (3 test tubes, each can be tested once) D: Chlorine Tester (one bottle of test solution + one test tube)
When testing, try to compare colors when the light is good.
If the test reagent is accidentally splashed on your eyes or skin during the test, it should be rinsed immediately with water.
This series of detection reagents is toxic and should be placed in a place that children cannot touch. Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid.
