Humidity Indicators

Humidity Indicator are designed for mounting in moisture sensitive electronic or electro-optic equipment, or any other humidity controlled enclosure. They readily detect changes in the humidity of the space being monitored by using a colour change indicator paper which turns from blue to pink as the humidity increases, and turns back to blue when the humidity decreases. The indicator solution used is water soluble and therefore humidity indicator papers should not be placed in direct contact with water or steam or exposed to extremely high humidity’s for protracted periods of time. Also strong solvents such as ammonia fumes will cause the bleaching of the colour change dye and lose colour reversibility.

Most of these indicators can be fitted with a desiccant cartridge which will adsorb any moisture entering the equipment during its use. These are known as static desiccators.

Choose a sub-category of products from the Humidity Indicators category:

Non-reversible Humidity Indicator Cards

Humidity Indicators for Equipment

Small Humidity Indicators for Equipment

Mounting & Blanking Plugs

Humidity Indicator Cards

Combined Humidity Indicator Cards & Relief Valves

Humidity Indicators for Containers & Flexible Barriers

R.F. Screened Humidity Indicators for Equipment & Enclosures

Observation Windows & Panel Bushes