九龍新蒲崗大有街25-27號中興工業大廈B座2字樓7室
Rm. 07, 2/F., Blk. B, Chung Hing Ind. Bldg., 25-27 Tai Yau St., San Po Kong
Larger display makes more data easier to read.
Solar powered when light is sufficient, battery powered when light is insufficient.
Designed and engineered for easy operation.
Regular percentage calculations.
All the mark-up capabilities of an adding machine for simplified cost and profit calculations.