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Alarm clock with daylight saving time switch

päiväys: January 27, 2020

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Environmental risk meter, enviriskometer

Enviriskometer would get answers to questions like: how hot or cold air is are some object too hot or cold to touch what is sound pressure level level of ionizing radiation (α, β, or γ) will my microwave oven leaks radiation are there strong electromagnetic field around what is carbon dioxide level what is carbon monoxide level what is oxygen content what is air humidity

Data logger for monitoring growing conditions for plant

Heat pump kettle

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Alarm clock with daylight saving time switch

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