Tiny Smart Dew sensors promise low-cost security solution

The cost of securing large properties with physical barriers like fences or conventional electronic surveillance systems can be quite prohibitive but a new invention from Tel Aviv University promises a cheap, effective solution in the form of a network of tiny sensors as small as dewdrops. Called "Smart Dew", the devices can be scattered outdoors on rocks, fence posts and doorways, or even indoors on the floor of a bank to serve as invisible security guards with each individual "dew droplet" capable of detecting an intrusion within a parameter of 50 meters (165 feet).

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