Raxial S4 - Inline Duct Booster Fan with Speed Controller 4" ventilation This enables you to control

This enables you to control up to 1000 fixtures on one EL2 controller

1 — Thermometer and Hygrometer

Dry Contact Output:                     30VDC/250VAC

It features massive thermal heat distribution fins on the ballast compartment to allow the internal electronic components to operate at optimal temperature range

Raxial S4 - Inline Duct Booster Fan with Speed Controller 4" ventilation This enables you to controlA duct fan designed to boost airflow in HVAC systems and ventilate home spaces like attics and workshops. Features a variable fan speed controller, enabling you to optimize airflow and noise level for any application. Unibody die cast construction with no welded seams; reduces vibration while ensuring smoother airflow. AC brushless motor with steel blades and lubricated bearings; not suitable in restricted airflow applications. Duct size: 4