Post Office Box

We are one of the leading Manufacturers & Suppliers of Plug Type Post Office Box. The Post Office Box is of high quality and gives best performance. The electricity Post Office Box has two spring keys having special contact for battery and galvanometer fitted inside a polished teak wood box with hinged lid. Features

• Black Bakelite panel lined in white color to show circuit connections
• Three pairs of ratio arms are each 10, 100, 10000
• Resistance arms contains 16 coils from 1 to 50000 with infinity plug
• Total value 11,1100

• Resistance wire, double silk covered
• Wound non-inductively
• Have a negligible temperature co-efficient
• Accuracy of coils 100 to 5000 ± 0.05% and of the resistance coils ± 0.1%