Figure 6.50. A pen, a microchip, and a wristband minimize the chances of wrong-site surgery.

Photograph of a pen, a microchip, and a wristband, which minimize the chances of wrong-site surgery.

Source: Copyright © CheckSite Medical, Inc. Used by permission.

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Figure 6.51. A narrow strip of magnetic material, accompanied by exit door sensors, helps deter library thefts

Photograph of a book and a narrow strip of magnetic material. This material, accompanied by exit door sensors, helps deter library thefts.

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Figure 6.52. Exit door sensors in a library

Photograph of exit door sensors in a library.

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Figure 6.53. The metallic layer desensitizes books so they can be removed from the library without setting off an alarm

Photograph of a metallic layer which desensitizes books so they can be removed from the library without setting off an alarm.

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Figure 6.54. The sensor strip can stop a shoplifter

Photograph of a retail sensor strip. The sensor strip can stop a shoplifter.

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