ProScale 555 Johnny 5

The ProScale 555 Johnny 5 scale is a fun and affordable pocket scale that was built to be durable. The scale’s sturdy construction stabilizes the internal components, while a removable hard cover protects the body or can be used as an expansion tray when weighing larger items. The ProScale555 Johnny 5 also features a large backlit blue LCD display, an easy to use 2-button interface and an energy saving auto-off function.


  • Blue backlit LCD display
  • Hard protective cover
  • Expansion tray
  • Tare/Zero function
  • Energy saving auto-off
  • Batteries included
The ProScale 555 Johnny 5 is part of the ProScale Numbers Series.
Model Capacity Accuracy
555 Johnny 5 555 g 0.1 g
Included Accessories
2 x AAA Batteries
Tare Yes
Hold No
Count No
Auto-Off Yes, 30 sec.
Overload Indicator Yes
Calibration Yes
Power Up Segment Test No
Negative Values No
Technical Information
Units g, oz, gn, dwt
Power 2 x AAA Batteries
Display Backlit LCD, Blue
Warranty Length 2 Years
Operating Temperature Optimum 10-40°C (50-104°F)
Scale Dimension 3.5″ x 2.4″ x 0.7″
90mm x 61mm x 18mm
Tray Dimension 2.1″ x 2.1″
54mm x 54mm
Scale Weight

555 Johnny 5

Mode Capacity Resolution
Grams 555.0 g 0.1 g
Ounces 19.58 oz 0.01 oz
Carats 356.9 dwt 0.1 dwt
Grains 8565 gn 1 gn

555 Johnny 5

Download User Manual

Calibrate ProScale 555 Johnny 5 Scale