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| Features |
| + |
The owner can directly read the information from guard unit |
| + |
The owner can receive and store one pieces of public information and store 4 pieces of latest information alone and 500 pieces of information (no lost after no power) |
| + |
The owner can only review its information and public information |
| Specification |
| Size |
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180x110x35 mm. |
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