Description
Johnson’s Cobalt Chloride Test Paper can quickly and economically measure the presence of relative humidity in the atmosphere
The paper is directly exposed to the atmosphere and turns from blue to pink upon contact with relative humidity greater than 2%
10 x booklets with 20 strips each (6cm x 1cm)

![Whatman® indicator papers [Pack of 100]](https://idealmedical.co.za/wp/wp-content/uploads/2020/06/815-Whatman-ph-full-200x200.jpg)

![HY-RiSE® Color Hygiene Test Strip [Pack of 50]](https://idealmedical.co.za/wp/wp-content/uploads/2022/06/460-hy-rise-rapid-test-hygiene-200x200.jpg)

Reviews
There are no reviews yet.