Bluelab External Lockout and Alarm Box Calcium ✅ Formulated for RO/Soft WaterCompensates

✅ Formulated for RO/Soft WaterCompensates for the lack of essential minerals typically missing from RO and soft water sources

and overall plant vitality

Durable and easy to install

Its expertly engineered LED optical technology evenly distributes light across the canopy

Bluelab External Lockout and Alarm Box Calcium ✅ Formulated for RO/Soft WaterCompensatesprotect your crops from overdosing or system failure Enjoy peace of mind and complete your dosing system You can use the Bluelab External Lockout and Alarm Box to connect your Bluelab Pro Controller to external switches. When these switches are activated, the Bluelab Pro Controller will automatically be placed in lockout mode and no further dosing will occur until reset. This puts the safety of your plants first, so that they will be protected from