Bluelab External Lockout & Alarm Box growing-accessories the pure and natural vegan

the pure and natural vegan formulation encourages beneficial microbial activity in the root zone

High-pressure pH probe - easy to clean and calibrate

• Sap groove keeps blades from sticking

No more switching between meters for your routine measurements

Bluelab External Lockout & Alarm Box growing-accessories the pure and natural veganThis Bluelab External Lockout and Alarm Box is an optional extra for your dosing system. Use to connect the Bluelab Pro Controller to external switches, for example a float switch or a greenhouse alarm system. When these switches are activated, the Bluelab Pro Controller is placed in lock out mode, so no further dosing will occur until reset.