1.max/min thermometer is widely used in home application, it can show you the last time's temperature 2.size:72x32x72mm 3.LFGB
1) size: 72x32x72mm
2) lens is made of PMMA, back housing is ABS, outer ring is aluminium alloyed.
3) two sides needle can be moved when you adjust the knob
4) how to use this kind of thermometers: try to make the three needles to be in a line, when the temperature changes, the black central needle can draw either of other needle. So you will easy to find what's the temperature of last time.
5) OEM is welcome...
Max/min thermometer with sticker