Usage:
1. Adjust the telescopic rod: loosen the fastening nut of the
telescopic rod, stretch it to a suitable length, and then tighten
it.
2. Digital adjustment: use magnetic flip head to hold the field
flip sheet and pull it vertically outward quickly to flip it to the
other side.
3. Clean digital cards regularly with a cleaning brush.
Applications:
It definitely displays various kinds of oils price in bulk plant so
that drivers of tank truck can recognize them easily.When oil price
changes, easily use the magnetic rod to change the digits.
Other applications:It also can be used in other fields according to
the customers'need.