From the brand

Dunuo: Where Every Degree Sparks Joy.

Product description

Providing clear and accurate outdoor temperature readings from inside your home.
Perfect for monitoring outdoor temperatures in garden or backyard.
Ideal for monitoring conditions in garages, workshops, or storage spaces.
Providing clear and reliable temperature readings around your pool or patio.

What material is it?

It is solid brass outdoor thermometer
Is this thermometer weatherproof?

Yes, it is weather resistant thermometer.
How does it handle extreme temperatures?

Yes, Made of solid brass, which is designed to withstand extreme weather conditions. This suggests that it should be able to handle both hot and cold climates effectively.
Where can be used?

It can be installed on wall for greenhouse, patio, window, and any outdoors.