によって Josh Kleckner 13年前.
313
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pros: inexpensive, mechanical. Fool proof.
cons: most human/labor dependent
Pros: high level of control, lower cost
Cons: Only 2000 users can be used
Pros: highest level of control and ease of use
Unlimited users, computer tracking system w/ software
Cons: most expensive
stickers can fall off
Pros: Using existing system, leveraging existing technology
Cons: Could be a muddled process. Relying on fairly uninterested third party to assist. Would need to activate from gas pumps.
Confirm mechanical pump control unit