Steel movement with high accuracy, glass mirror surface with anti-scratch and high transparency, ABS shell.
Thermometer: measure in-car temperature; Hygrometer: measure in-car humidity.
Setting knob is inside ,please remove the rear cover to find it.
Car dashboard clock with strong viscous force double-sided adhesive on the bottom.
Easy to fix, just paste on anywhere you want for car, boat, ship, desk, table, etc.