We recommend measuring CO2 periodically to ensure optimum levels for growth. The Active Air CO2 Test 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.
• 1 100cc sampling syringe
• 2 CO2 gas detection tubes (each good for one test)
• Complete instructions