Bluelab External Lockout & Alarm Box for Pro Controller | Float Switch Integration

Bluelab External Lockout & Alarm Box The Bluelab External Lockout & Alarm Box is an essential safety add-on for the Bluelab Pro Controller, enabling external switch integration to prevent overdosing and trigger audible or visual alarms in your hydroponic growing system. Key Features External Switch Lockout: Connect float switches, level sensors, or irrigation controllers to automatically inhibit all dosing when triggered — putting plant safety first. Normally Open & Normally Closed Switch Support: Compatible with both NO and NC switch configurations for maximum flexibility. Irrigation Controller Integration: Pause dosing during feed-out cycles by wiring in your irrigation controller — prevents nutrient overdosing during irrigation events. External Alarm Output: Add an audible horn or flashing light to your Pro Controller system for immediate alerts when lockout is triggered. DIY Wiring: Wire in your own switch options for a fully customized safety and control setup. Overdose Prevention: Automatically stops all dosing when a connected sensor (e.g. float switch on reservoir or nutrient tank) detects a fault condition. How It Works When connected to the Bluelab Pro Controller, the External Lockout & Alarm Box monitors the state of connected external switches. If a switch is triggered — for example, a float switch detecting low nutrient levels or a reservoir fault — the Pro Controller immediately enters lockout mode and halts all dosing until the condition is resolved and the system is reset. An external alarm output allows you to add a horn or flashing light for audible/visual notification. Compatible With Bluelab Pro Controller Ideal For Hydroponics and aquaponics systems using the Bluelab Pro Controller Growers integrating float switches or level sensors for reservoir safety Commercial and hobby grows requiring automated overdose protection Systems with irrigation controllers requiring dosing pause during feed-out In the Box Bluelab External Lockout & Alarm Box User Manual