On a medical or room thermometer the smallest unit that you are likely to come across is 1 degree.
It depends on the temperature range the thermometer was designed to measure
you order unit fraction like this by smallest to biggest or biggest to smallest
Celsius.
The atom is the smallest unit of an element that has all the properties of the element.
There are many units which are used to measure the lengths of the object . The smallest unit of length is fero meter.
-20 degrees celsius
0.1 is typical, however if you have a Beckmann thermometer then you can read 0.01 0C. These thermometers are large expensive and fragile so not commonly available even in laboratories.
David Phillips invented the first and best infrared thermometer which to your question is the smallest thermometer therefore the answer is DAVID PHILLIPS;P☻☺☻☺
A standard thermometer has Fahrienhiet and Centigrade
If it is a molecular compound, the smallest unit is called a molecule. If it is an ionic compound, the smallest unit is called a formula unit.
This smallest unit is the atom.
The smallest unit in an element is the atom.
Smallest unit of a compound is a molecule.
A molecule is a compounds smallest unit
A cell is the smallest unit of an organism
Alyssa Carney is the smallest unit of mass.
centimeters