Still smaller versions the size of specks of salt can be added to paint, turning entire surfaces into wireless sensors that can detect motion or act as smoke alarms or security systems.

更小一点如盐粒大小的传感器可以被掺入油漆中，把整个表面变成无线传感器——可以侦测物体的运动或是担当烟雾警报器、安全系统。

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Some of the current biometric sensors used by high-level security companies could easily fit into your mobile phone and add a needed level of security.

高水平的安全公司目前使用的某些生物识别传感器，可以很容易地装入手机中，添加所需要的安全级别。

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A web of security cameras, metal detectors, beam sensors and bullet-proof screens will reinforce security in the three-storey, 3, 000 square-metre building.

在这座三层楼高、3000多平米的建筑中，监视系统、金属探测器、光束传感器和防弹屏构成了一个网络，加强安全保卫。

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The Massachusetts-based company develops and makes sophisticated sensors and detection systems for the homeland security and defense markets.

FORBES: Connect

The company specialises in mobile phone security and is developing 2D fingerprint sensors for Apple, according to the merger documents.

FORBES: Links 11 Sept: Apple's iPhone 5 Could Add Half A Percent to US GDP

However, he said, many security researchers were getting interested in the sensors that came as standard in smartphones largely because the data they gathered was not subject to the same controls that governs other phone functions.

BBC: Smartphone sensors reveal security secrets