Although the actual temperature measurement is-20 to 110 degrees, the ideal working state of the liquid crystal is:-5 degrees to 45 degrees, try not to put it at minus 10 degrees, it will exceed the LCD's tolerance ~ causing the LCD panel to burst the screen ~ the LCD is fragile, this product can be returned and exchanged for warranty, if you need to return it, you can send it back together, and the freight is paid by yourself.

Product features:

battery: super power saving with button battery

there is a round suction cup on the back of the watch, which can be firmly attached to the glass surface.

The dial uses glass liquid crystal to display the time, and the time is clear.

It is the ideal timetable for home and car.

Low temperature will reduce the suction force of the suction cup. Apply some water on the suction cup and it will be OK

  suggestions for use: please clean the adsorbed surface before pasting the electronic clock. If the suction cup is in water, the effect will be better!

Size: 93*33 * 20mm

400 PCs/piece, large quantity and favorable! ~ ~ ~ ~ ~ ~