A few weeks ago, a Securitas salesman popped into the office, offering deep discounts should we be interested in upgrading our three-year-old alarm system. Given three years of technological advances, my expectations were high, and Securitas certainly delivered. In addition to the old features, we’ve now got magnets on the entrances, and their latest, easy-to-use alarm panel — which you’ll have to see to believe.As you can see, anyone comfortable using an iPhone will feel pretty much at home.