We recommend measuring CO2 periodically to ensure optimum levels for growth. The CO2 Tester Kit is an inexpensive alternative to costly electronic monitors. Use the tester kit to gauge proper CO2 level, as well as eliminate waste and optimize growth. The kit is inexpensive and easy to use, and includes instructions.
- Gauge proper CO2 level.
- Instructions included Inexpensive and easy-to-use!
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