Digital Temperature Sensors and conventional Thermometers
The air thermometer type 2520 with double radiation screening is designed for wall-mounting.
It consists of an inner hull with a precision thermometer resting in a rubber socket and an outer tube with the radiation-screening covers and the guiding angles for fastening. The knurled-head screw, which constitutes the upper cap of the inner hull, serves at the same time for twisting this hull around 180°, so that the thermometer glass will be protected, e.g. during transportation.
All metal parts are of polished chrome-plated brass, the rubber parts are of an oil-resistant and sea water-resistant quality.