Alla France - Glass thermometer with red liquid

On yellow enameled stem very readable 6/7 mm.

Red Liquid filling.

They have a plastic cap with a ring resistant to hot liquids for 30 seconds (150°C).
A "window" in front of the expansion chamber allows to check the integrity of the liquid column.

The scale of PROMOLAB ® thermometers resists all chemicals, except hydrofluoric acid and hot soda which directly attack the glass.
The numbers are very readable, placed above the line and with a dot every 10°C. The graduation is very wide, printed as dark as possible and fused into the glass through a special manufacturing process.

Available in total or partial immersion.
On partial immersion thermometers, a line and a dot at 76mm, with the inscription "Imm.76mm" allow you to immerse the instrument at the correct depth.