Humidity Cards

Humidity Card indicator scales provide a quick and inexpensive means of checking relative humidity levels of your storage or display area.

As humidity changes, the chemically impregnated spots change from blue (more humid) to pink (less humid). The humidity card indicates the current humidity level by reading to the lavender section (in between a pink and blue section).

If higher level of accuracy is required we recommend our digital thermohygrometer.

  • 110mm x 40mm Cards
  • Reads 10% - 100% RH levels
  • Pack of 5 cards
Read More
Humidity Cards
P931-3100 931-3100
Pack Size: Pkg 5 Price: £9.95 ex VAT In Stock

We use cookies for essential functions and optimisation of this website. Please see our Privacy Policy for more information. Click to ‘OK’, or continue browsing to accept all cookies.