Abstract: Conventional deformation sensors are inconvenient to deploy in large areas due to the employment of cables and power supplies. This article proposes a wireless passive sensor based on ...
Key Takeaways Infrared IR waves are part of the electromagnetic spectrum crucial for various applications by detecting thermal energy emitted by objects IR sensors can be classified as active emitting ...
We've reviewed carbon monoxide (CO) detectors from Aico, FireAngel, Firehawk, Google Nest and Kidde, along with a collection of unbranded models, to find the alarms that will detect CO and sound every ...
There is valuable history buried in the ground, waiting to be discovered. If only there was a tool to tell us where it is… The best metal detectors will help you unearth old coins, jewellery, ...
Installing a smart water sensor can save you a lot of money and hassle. The best models we've tested immediately alert you to leaks and even shut off your home's water supply. I’ve been working ...
The First Alert L1 is a battery-powered sensor that sends alerts to your phone when a sink or appliance springs a leak or when the temperature drops below a certain level. The D-Link DCH-S161 Wi ...
The camera offers motion detection with custom motion zones, 1080p video with IR night vision, a phone app and Alexa integration, plus IP65 ingress protection so it won’t mind being caught in ...
It is a truth universally acknowledged, that a single TV in need of decent sound, must be in want of one of the best soundbars. Go ahead — watch a movie with your built-in TV speakers, and you ...