STI Stopper II Weather Stopper Pull Station Cover With Spacer. No
Protective polycarbonate cover. Helps stop false alarms. Without horn, fire label. Clear spacer with gaskets. Helps extend the life and reliability of weather exposed manual pull stations. UL/cUL Listed,
View more
STI-1130 Stopper II Cover w/Horn Spacer | Life Safety
The STI-1130 is a Stopper II pull station cover from Safety Technology International (STI), designed to protect fire alarm pull stations from accidental activation while remaining immediately accessible in a
View more
STI Stopper II and Weather Stopper II Covers for Manual Pull
Window made of clear and durable plastic. Optional warning horn powered by 9 VDC battery. Fits pull stations from 5-1/2" to 6-3/4”. environment. Stopper®. (SURFACE MOUNT MODELS ONLY)
View more
Weather Stopper® | STI Global (Americas)
Proven effective for more than 35 years in helping stop false fire alarms without restricting legitimate alarms. Designed for outdoor use. Three year guarantee against breakage of polycarbonate in
View more
STI STI-3150
Engineered specifically for commercial and industrial applications, this rugged polycarbonate cover creates a comprehensive weatherproof barrier that shields sensitive fire alarm activation
View more
STI Pull Station Protective Covers – Stopper II
The cover accommodates most manual pull stations. When the Stopper II with horn is lifted to gain access to the protected alarm, a piercing self-contained 95 or 105 dB warning horn (at one foot) sounds.
View more
Station Protection | part of Power System Protection: Fundamentals
This chapter attempts to show the independence and the interdependence of the various protection systems at stations. Stations within the domain of most utilities can be broadly characterized as
View more
Stopper II® | STI Global (Americas)
This unique pull station cover has helped prevent false fire alarms around the world for more than 40 years, without restricting legitimate operation of devices.
View more
Stopper II Fire Pull Station Guard with Horn, Flush Mount, with Fire
Unit consists of a clear, tamperproof, super tough polycarbonate shield and frame that fits over manual pull stations. When cover is lifted, a self-contained alarm sounds drawing attention to the area.
View more
STI STOPPER® II
Stopper II consists of a clear, tamperproof, super tough polycarbonate shield and frame that fits over manual pull stations. When lifted to gain access to the actual alarm, it sounds a piercing self
View more
Stopper II Fire Pull Station Guard with Horn, Flush
Unit consists of a clear, tamperproof, super tough
View more
STI-1130 Stopper II Cover w/Horn Spacer | Life Safety
The STI-1130 is a Stopper II pull station cover from Safety Technology
View moreLaser Diodes & VCSEL
High-power CW/pulsed laser diodes (808nm–1550nm) and VCSEL arrays for 3D sensing, LIDAR, and optical interconnects.
Silicon Photonics & CPO
Co-packaged optics engines, silicon photonics ICs, and optical I/O solutions for high-density switches and AI clusters.
Optical Transceivers & AOCs
400G/800G QSFP-DD/OSFP modules, active optical cables, and custom optical engines for data center interconnects.
Laser Drivers & CDR
Low-jitter laser drivers, integrated CDR circuits, and linear TIAs for coherent optics and short-reach links.