A Humidity Indicator Card (HID) is a small, self-contained device that is used to measure the relative humidity (RH) of the surrounding air. HIDs are typically made of a paper or plastic substrate that is impregnated with a chemical indicator. The color of the indicator changes depending on the RH, providing a visual indication of the humidity level.
Hong Kong Office
RM 804, Sino Centre,
582-592 Nathan Road, Kowloon, Hong Kong.
Business Office
11A, Solok Rajawali 2
11900 Bayan LepasPulau Pinang
Malaysia
Hong Kong Office
+852-2384 0332
Business Office
+6017-833 8562
Please contact business office
cynthia_lay@rjglobal.hk
sales_marketing@rjglobal.hk
sales@rjglobal.hk
henry.sales@rjglobal.hk
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