November 5, 2025
A sprinkler supervisory switch, whether it’s a flow, tamper, or pressure switch, has specific electrical specs. Learn more about these numbers.
August 14, 2025
Smoke and CO detector testers are essential for verifying that alarm systems function properly. But know the shelf life of smoke and CO cartridges!
January 1, 2025
In some hazardous environments, essential but standard fire protection devices could actually cause fires! Learn about explosion-proof equipment that helps prevent these issues, including flow switches, tamper switches, and other devices.
July 17, 2024
Pressure spikes can damage gauges. Prevent gauge overpressure damage by understanding ratings, employing best practices, & using snubbers.
July 17, 2024
Pressure spikes can damage gauges. Prevent gauge overpressure damage by understanding ratings, employing best practices, & using snubbers.
January 19, 2022
System Sensor fire sprinkler supervisory devices are now manufactured by Safe Signal. Learn why the name changed—but little else!
June 8, 2021
QRFS explains the difference between tamper switches and supervisory switches, plus other types of fire sprinkler system sensors.
September 1, 2020
Alarm gong systems deliver warning that sprinklers are operating—even if the power goes out. Learn exactly how they work.
May 27, 2020
Learn about the features of pitot gauge kits—including the gauges, blades, tubes & more—and how they make testing easier and more accurate.
March 17, 2020
Learn how UL-listed smoke in a can offers the most effective method for testing smoke detectors, and what types it works with.
February 6, 2020
Learn how a balance of cost, code, and a love of the craft influences contractors’ choice of fire alarm bells, water motor gongs, and newer electronics.
January 21, 2020
Fire bell voltage, size, and volume can confuse non-experts and fire safety pros alike. Pick the right bell (and the right quantity) with this guide.
