as in detector
a device that detects some physical quantity and responds usually with a transmitted signal the cat accidentally triggered the motion sensor, which set off the alarm

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Recent Examples of sensor As members complete their exercises, the room's sensors track their range of motion, their technique, their power and their speed all in real-time, sending that data to each member's AI trainer so that each personalized coach can provide feedback throughout the workout. Jason D. Greenblatt, MSNBC Newsweek, 2 Apr. 2025 The final solution employs a traditional hydraulic steering box fed by an electric pump that varies pressure based on an angle sensor on the steering column. Michael Van Runkle, Robb Report, 2 Apr. 2025 Rechargeable Electric Toothbrush has a pressure sensor and two intensity settings to protect sensitive gums from overbrushing. Nora Colomer, FOXNews.com, 31 Mar. 2025 Our test unit is now defunct due to a faulty sensor, but reviews throughout the internet indicate this was likely an anomaly. Simon Hill, Wired News, 31 Mar. 2025 See All Example Sentences for sensor

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“Sensor.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sensor. Accessed 15 Apr. 2025.

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