Enhanced protection: This Glass made of tough tempered glass and solid wood particle board

over-discharging and over-heating

Beyond 30° either side of center

Auto-Off function: preserves battery energy

Pneumatic Temperature Indicator: 40° to 240°F, 3 1/2 in Dia, 3 to 15 psi Enhanced protection: This Glass madePneumatic Temperature Indicator: 40 to 240F, 3 1 2 in Dia, 3 to 15 psi Brand JOHNSON CONTROLS Control Air Pressure3 to 15 psi Air Connections 1 8 in NPT Temp. Control Range 40 to 240F Accuracy+ 1 2% of Full Range Ambient Temp. Range 20 to 150F Height 1 27 32 in Diameter 3 1 2 in UNSPSC 41112105 Country of Origin USA Item 20RG16 Mfr. Model T 5500 1055