Bluelab pH 4.0 Calibration 500ml Pot Teamed with our Bluelab ppm

Teamed with our Bluelab ppm or EC Pen

Dry KoolBloom

1x Airis 8 Battery

The rugged workhorse design makes this fixture the obvious choice for growers seeking a high production and low energy lighting solution

Just choose your size and colour and get on with your grind

Bluelab pH 4.0 Calibration 500ml Pot Teamed with our Bluelab ppmRinse probe in fresh water and place it in either pH 4. 0 or pH 10. 0 solution (use pH 10. 0 solution if you expect to measure above 7. 0 pH). Wait for reading to stabilize. Press the cal button until CAL 4 or CAL 10 is displayed CAL 4 or CAL 10 should be displayed (depending on what solution you are calibrating in).