The TA378-HC-MHI marks a significant breakthrough in the monitoring of humidity inside long-term storage containers for sophisticated military/electronic and corrosion-susceptible equipment. 

The element warns of dangerous humidity levels by staining a white disc a brilliant orange (turning later to a dark brown) when it has been exposed to humidity ranging from 55% RH for an eight hour continuous period to 85% RH for two hours.  Humidity levels below 55% will not cause the indicator to stain, regardless of duration.

Unaffected by temperature, it gives an unmistakable indication of the need for desiccant replacement, regardless of when it is checked.

The element is designed to be installed in the TA456 housing at the time the container is desiccated.  It can also be used to replace color-change elements in TA356, TA350 or any SAE AS26860 Type Humidity Indicator Plug.  Installation is accomplished with a 0.50 in. (13 mm) hex key wrench.

Each element is individually packaged in a MIL-B-22191 transparent barrier bag with desiccant.  Quantities are overpacked in sealed metal containers.

Weight: 0.03 lbs. (14 grams)

TA378 is appropriate for use on NEMA 1, 2, 3, 3R, 3S, 4, 5, 6, 12, 12K, and 13 enclosures, as well as IP66/IP67 enclosures. This item may also be appropriate for use on other NEMA or IP enclosures, depending upon the application. Contact AGM's Engineering department for more information.