JMH-02 features:
Easy to carry mini hanging scale with a hook
Ideal for fishing, express company, mobile vendor, etc.
JKD features:
can hold the scale on your palm and put in your pocket
Ideal for weighing jewelry Gold and herb
JKH features:
Compact size, easy to carry digital simple counting weighing scale balance
Use 4 AA dry batteries or adapter
NWTH features:
Table scale can carry by Motorcycle and use dry batteries
Optional RS-232 interface
JP2S features:
Small table scale pricing weighing scale
Change/Pricing/Accumulation/Unit Price saved and paged-out functions
for more, pls visit
https://www.jadever.com/portable-scale_c10
https://www.jadever.com/electronic-pricing-weighing-scales-optional-with-pole_p39.html
IPv6 network supported 
