Glow-in-the-dark bimetal thermometer, range 50 to 550 Degrees F, 2-1/2" stem.

Glow-in-the-Dark Dial Thermometer, Temperature Range 50 Degrees to 550 Degrees F, Stem Length 2.5 in, Dial Diameter 5 in, 1/2 in NPT, Back, Includes NIST-Traceable Certificate No, Housing Material 300 Stainless Steel, Lens Material Glass