HI-1 - Single Level Humidity Indicator Card

HI-1 single level colour-change humidity indicator cards are cobalt chloride impregnated and housed inside a printed envelope.

HI-1 complies to the Defence Standard 81-132 - Issue 2.

This humidity indicator card changes colour as the humidity increases, the chemically impregnated spots change from blue in colour when (active) and through to a lavender colour when (saturated). They are commonly used in packaging application as a visual indication of rising Relative Humidity Levels.

The envelope is printed with instructions and also a colour chart to aid reading.

Dimensions:

Blue Paper - 90mm (Width) x 65mm (Length)

Window - 70mm (Width) x 22mm (Lenth)

Envelope - 100mm (Width) x 76mm (Length)

Quantity: 25 per pack

Shelf Life: 5 Years