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| MOQ | 2 Piece/Pieces |
| Place of Origin | Guangdong, China (Mainland) | Brand Name | King Pigeon |
| Model Number | S251/S252/S253/S254/S255/S256 | Power supply | Default: 47~63Hz, 85~264VAC,or 120~370VDC, Optional: 12-36VDC |
| Power consumption | Standby:100mA; Working Max.: 300mA | GSM Frequency | 850/900/1800/1900Mhz |
| 3G/4G/NB-Iot | Optional: WCDMA/TDD-LTE/FDD-LTE/NB-IoT | TCP/IP stack | TCP,UDP |
| SIM interface | Supporting 3V SIM Card | External antenna | SMA Antenna interface, 50 Ohm, Gain: 3dB |
| USB | 1 USB Port can be used for configuring and export records. | Digital Inputs | 4 Digital input, NC/NO type |
| Relay Outputs | 2, Rated: 5A/30VDC,5A/250VAC |
Floor 2,A Building 14, Fuqiao Third Industrial Zone,Qiaotou Community Fuyong Town Baoan District
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