alarms

Submitted on September 22, 2020 | John Adams
Would you recommend conformal coating on sensor boards that are going to be used in moist external environments? What are the key issues with DIY conformal coatings? A: We’d start by purchasing sensors with IP67 ratings if we were going...
Submitted on August 11, 2020 | John Adams
How would you decide controller location when installing an alarm or access control solution in an SME premises? A: Selecting the best location for an alarm and/or access control panel is site specific. In larger applications, controllers are usually installed...
Submitted on June 29, 2020 | John Adams
In this Q&A, SEN speaks with Gallagher’s Phil Marr and Pedro De Jesus to find out what’s so special about Class 5 security sensors and how secure they are, as well as chatting about security and perimeter solutions that feed...
Submitted on June 15, 2020 | John Adams
Shooter Detection Systems (SDS), a leading gunshot detection solutions provider has launched its Guardian Direct Connect solution in the U.S. This new capability is enabled by the Guardian Indoor Active Shooter Detection System’s sensors and will instantly send gunshot alerts...
Submitted on June 9, 2020 | John Adams
We’ve heard there are 2 different types of Fresnel lens, one being better than the other in alarm sensor applications. Has SEN heard anything about this? A: There are 2 types of ‘fresnel’ lens – one type has a design...
Submitted on June 2, 2020 | John Adams
IF you were approaching an older hard-wired alarm system that was inoperable or that suffered regular false alarms, what steps would you take to troubleshoot the system? Q: When trying to sort out alarm system failure or repeated false alarms...
Submitted on May 29, 2020 | John Adams
We’ve been talking about 5G for a long time – so long it almost seemed like the technology would never appear in the real world – but as Australia’s largest telco flexes its infrastructure muscles, electronic security providers need to...
Submitted on April 24, 2020 | John Adams
Are all PIRs the same or do the better and more expensive ones really offer superior performance? What sorts of features offer end users and installers the best results? A: Quality sensors are superior, especially in challenging installations. If you’re...
Submitted on March 18, 2020 | John Adams
We’ve had some trouble recently in a complex commercial environment running alarm zone cables that were snagged and pulled out by an AC contractor. The issue is that the zone cable can’t live near EMI and there’s power in the...
Submitted on December 19, 2019 | John Adams
What’s the maximum distance we can run an alarm system zone loop in larger industrial applications? We're tossing up wireless but we don't have line of sight. A: The diameter of the wire is important here because if the wire's...
Submitted on October 18, 2019 | John Adams
Underwriters Laboratories is continuing to investigate claims many hardwired alarm panel have dangerous vulnerabilies. “Thus far, no safety issues have been identified,” a UL spokesperson said. “UL sees no imminent hazard despite the assertions currently in the market. The current...
Submitted on July 12, 2019 | John Adams
What’s the best passive infrared  sensor technology available today for intrusion detection systems? A: KING of pure passive infrared intrusion detectors is the quadruple element sensor. It works on a different principle to the dual edge units that monitor passage...
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