RELATIVE HUMIDITY CARDS 相对湿度卡 These cards change color from blue to pink to indicate the presence of moisture in the air. The 30% RH card changes color when the moisture content rises to 30% RH. The 10-60% RH card has 6 spots corresponding to 10, 20, 30, 40, 50, and 60% RH that change color individually when the moisture content reaches the indicated level. Both cards return to blue when placed in a dry environment. These cards are especially useful in conjunction with the compartment desiccator, the minidehumidifier and desiccant bags . They can also be placed in a desiccating chamber to indicate the relative humidity within the chamber. These cards change color from blue to pink to indicate the presence of moisture in the air. The 30% RH card changes color when the moisture content rises to 30% RH. The 10-60% RH card has 6 spots corresponding to 10, 20, 30, 40, 50, and 60% RH that change color individually when the moisture content reaches the indicated level. Both cards return to blue when placed in a dry environment. These cards are especially useful in conjunction with the compartment desiccator, the mini-dehumidifier and desiccant bags . They can also be placed in a desiccating chamber to indicate the relative humidity within the chamber. RELATIVE HUMIDITY CARDS 相对湿度卡 STOCK NO. DESCRIPTION | 60130 | 30% Relative Humidity card | 60136 | 10-60% Relative Humidity card |
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