JBL O2 Test Kit

Freshwater and saltwater aeration (Oxygen) monitor Simple to use test providing overview of cloud scale measurements: <0.2;1;2;4;6;8;10 milli grams/liter Sufficient for approximate 50 tests Caution Wear protective gloves/protective clothing/eye protection/face protection Keep out of reach of children Harmful if swallowed, causes several skin burns and eye damage