Bluelab pH 4.0 Calibration Solution 500 ml iPower Grow Lights Titan Controls Helios 10 -

Titan Controls Helios 10 - Pre-Wired 8 Light 240 Volt Controller with Trigger Cord & Timer

Ignition Failure

Containing L-amino acids and the right types of phosphorus and potassium

They come in clearly marked biodegradable UV resistant sleeves for comfortable handling and algae prevention

EN designation means environmentally friendly in that the lamp passes EPA

Bluelab pH 4.0 Calibration Solution 500 ml iPower Grow Lights Titan Controls Helios 10 -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). Calibration Solutions should be stored in a cool place out of direct sun and heat. They should be stored with the lids securely tightened.