Drop Checker Indicator Solution 8.4 dKH

Pre-mixed Drop Checker Indicator Solution High Range 8.4dKH, 1 oz squeeze bottle with dropper cap. The 8.4 dKH indicator solution is ideal for measuring higher range CO2 levels.  This comes pre-mixed in a 1 oz squeeze bottle with an uncontrolled dropper tip for easy filling.  The 8.4 dKH solution appears green in color at CO2 ranges between 50-60ppm  Blue color indicates lower levels of CO2; CO2 injection can be increased gradually until the indicator solution turns green. Yellow indicates high levels of CO2 that can be harmful to livestock, if the solution is yellow lower the CO2 injection and check the solution every few hours until the color is green.