VEVOR Linear Air Pump, 1110 GPH Air Flow, Septic Aerator Pump, Aeration System for 10 ft Deep Ponds, Fit for Septic Tanks, Aquariums, Waste Treatment, Seafood Restaurants, Fish Farms, Hydroponics

The pump’s air outlet matches standard 1/2 inch (12.7mm OD) air hose; the original matched black connecting hose is included in package, you need 1/2" outer diameter air tubing for replacement.

This pump is a simple linear diaphragm air pump, not a smart/controlled unit. It has air outlet(s) only and a built-in filter—no control ports mentioned. There is NO air alarm connection or sensor port. It runs continuously and does not monitor pressure or trigger alarms. Bottom line: no external air alarm hookup—you’d need a separate alarm system. if this answer does not resolve the current issue, please contact us again for assistance.