Bluelab pH 4.0 Solution Sachets (30) Shipping Lightweight Mylar for reflectively lining

Lightweight Mylar for reflectively lining a lit area

COGr Flores contains all the essential elements for optimal flowering

Safety Measures: Safety should always be a top priority when working with CO2

LCD display that indicates pH over the range of -2 to 16 pH with a resolution of 0

The heater socket can be used to control anything(up to 2kw) that you want on during the dark period

Bluelab pH 4.0 Solution Sachets (30) Shipping Lightweight Mylar for reflectively liningBluelab's 2. 77EC Conductivity Solution, pH 7. 0 and pH 4. 0 Calibration Solutions are now available in 20ml sachets. pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7. 0 first (buffer) then to pH 4. 0 (slope). The 2. 77EC Conductivity solution is used as a reference or checking solution to ensure you have adequately cleaned the EC CF probe.