65 mm diameter metal instrument, with a washer to hang it, although it also has a support on the back to anchor it with a nail.
It is compact and very precise, the elements that compose it are of great precision, covering a margin of error of +/- 1ºC. The thermometer, located at the top of the dial, contains a double scale, in degrees centigrade, or it can also be read in faranheits. As for the hygrometer, like practically all analogs, it goes from 0 to 100% humidity. This can be calibrated on the back with a damp cloth, allowing the needle to reach 100% humidity and once it has reached 100%, we remove the cloth and let the needle go down to the percentage found in that environment.
Technical characteristics: Material: metal Range of the thermometer in ºC: -20 + 55 Washer to hang it Dimensions: 65 mm in diameter.