The search for any type of postal scale ends here. Be it a digital postal scale, mechanical postal scale or a usb postal scale. All the information regarding these types of postal scales can be found on this site only.
Digital postal scales are more accurate than any other form of postal scales. The only disadvantage working against the digital postal scale is the pricing of this particular equipment. But, the digital postal scale still remains the choice of the majority. One can find digital postal scales with all the above mentioned features in brands like-Mettler Toledo, Ohaus, Pelouze etc.
Mechanical postal scales are much more cheaper that their digital counterparts. One of the primary reason for mechanical postal scales to still be in use is the cost & secondly the durability or maintenance free life which mechanical postal scales offer. Mechanical postal scales over a period of time can tend to give the approximate weight of an article instead of the precise weight.
Pelouze, American Weight are some of the manufacturers which still sell mechanical postal scales. USB postal scales have the same features of a digital postal scale with the added feature that these postal scales can be connected to the PC.