| 11. | The humidity measurements were taken using the same digital combination thermometer-hygrometer.
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| 12. | Produced thermometers, barometers, hygrometers, and glass instruments for physics experiments.
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| 13. | Inexpensive dial-type hygrometers make use of this principle using a coiled strip.
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| 14. | Lithium chloride is used as a relative humidity standard in the calibration of hygrometers.
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| 15. | A hygrometer will show whether the proper humidity level is being maintained or not.
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| 16. | :You might find what you are looking for in the article about Hygrometer.
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| 17. | Cheap hygrometers may be more decorative than informative.
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| 18. | The average hygrometer bought at the local store are mostly not worth the money.
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| 19. | Buy a hygrometer that measures relative humidity.
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| 20. | Use a hygrometer, often sold in combination with a thermometer, to monitor humidity.
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