Category Archives: News

Intelligent anti-theft alarm, is the use of Bluetooth 4.0 technology, through the distance changes to determine whether the items are still controlled in the safe range, or whether the items have been moved equipment. The following small series for everyone to introduce the smart burglar alarm principle. The smart burglar alarm is linked to the…

With the Covid-19 is around the globe, China, Denmark and France recommend social distancing of one metre; Australia, Germany and Italy recommend 1.5 metres, and the US recommends six feet, or 1.8 metres. The UK, meanwhile, is reconsidering its relatively large two-metre distancing rule, but has attracted criticism from top scientists for doing so. Why…