UP9000B-20T

Model: UP9000B-20T
Capacity: 20T
Division: 10kg
Function: printing,adding up etc.
Power: 6v rechargeable power supply,free of maintenance.
Temperature: -30℃~60℃ 
Characteristic:
1.The liquid crystal of large screen shows and shows is in poor light
2.Input 10 lines of topics heads
3.Man-machine conversation
4.The entire keyboard calebrates