Macherey-Nagel
On demand
Macherey-Nagel humidity indicator for relative humidity in an enclosed space, in one presentation.
908805
A humidity indicator that shows relative humidity in an enclosed space, read as a colour as a colour, continuously and without power.
Anywhere something is stored dry — a desiccator, a cabinet, a case of instruments — the assumption that it stayed dry is worth checking cheaply and continuously. An indicator gives a permanent answer that needs no power and no reading schedule.
The indicator sits inside the enclosure and changes colour with the humidity around it. There is nothing to switch on, nothing to calibrate and no reading to take on a schedule — it is simply looked at, through the window or on opening.
It reports the condition at the moment it is read. It is not a data logger and does not record what happened while nobody was watching.
Indicators are reversible: one that has gone back to its dry colour proves the space is dry now, not that it never got wet.
Supplied in one presentation.