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The automatic door used a mat actuator. In 1960, they co-founded Horton Automatics Inc and placed the first commercial automatic sliding door on the market. [5] With the invention of the Gunn diode, microwave motion detectors became common in automatic doors in the 1970s. [6] [7] In 1980, the first automatic door using an infrared sensor was ...
After 30 years, "People Greeters" will no longer welcome Walmart customers with a "cart and a smile." Four months after Walmart got rid of its night-shift "People Greeters," the big-box retailer ...
A Walmart greeter is an employee whose role is to wait at the front door of a Walmart store and greet all shoppers who enter. [1] CEO and founder Sam Walton implemented the role nationally in the 1980s. [1] The position is considered to be a big part of the company's identity and culture, [2] as well as one of its most recognized hallmarks. [3]
A passive infrared sensor used to detect motion. The passive infrared (PIR) motion detector is one of the most common sensors found in household and small business environments. This sensor does not generate or radiate energy; it works entirely by detecting the heat energy given off by other objects.
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The "Ring Chime" accessory is a unit plugged into a power outlet to play the doorbell's chime. The "Chime Pro" is an extended version that also doubles as a wireless repeater for Wi-Fi networks. [46] In November 2020, Amazon announced the recall of 350,000 Ring doorbells in the United States and 8,700 in Canada due to a potential fire risk. [47]