The STI-3150 is a surface-mount Weather Stopper II cover that guards a pull station from accidental activation and physical damage while adding a weatherproof seal for outdoor stations. It fits over flush-mounted stations up to 5-1/2" wide and 6-3/4" high, so it drops onto most standard pull stations already on the wall.
Built for the commercial fire installer
The clear polycarbonate cover keeps the station visible and accessible without exposing it to tampering or weather. Neoprene gaskets behind the frame and spacer add the additional seal needed for outdoor stations, and a lifetime guarantee against cover breakage means this isn't a callback item. No horn on this model, so it stays quiet until the station underneath is pulled.
Key features
- Deters false pulls without blocking access in an emergency
- Weatherproof gasket kit seals surface-mounted outdoor stations
- Fits stations up to 5-1/2" wide x 6-3/4" high, covering most standard pull stations
- Lifetime guarantee against cover breakage and damage
- ADA compliant, UL listed
System requirements
Installs over an existing surface-mounted manual pull station. No horn on this model; for an audible tamper alert, use the horn-equipped STI-3130 instead.
Does this model include a horn?
What size pull station does this fit?
Is this weatherproof for outdoor stations?
Spec Sheet
