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Reply to post: Re: Whazzat?

Ding-dong, the cloud calling: The Ring Video Doorbell

Doctor Syntax Silver badge
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Re: Whazzat?

'Like all PIR, it uses infra red heat and the sudden appearance of to register "movement".'

Yup. It's probably PIR. So why didn't the review just say that instead of something which is self contradictory?

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