* Usually used to measure the temperature of
swimming pool or pond
* Black or gray plastic shell can protect the glass
inserts from breaking buoyancy in the empty upper
cap will keep it vertical in water, which is very helpful
to observe.
* Nominal range: -10 - 50 C/F
* Scale division: 1C /F
* Fillings: organic liquid
* Total length: 190 mm
* Color: black or gray