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