| Remote Communication Interface | WIFI | WIFI | WiFi | Internet |
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| Working Frequency | 2.400 GHz ~ 2.4835 GHz | 2.412 GHz~2.472 GHz | 2.412 GHz~2.472 GHz | 2.412GHz~2.472GHz |
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| Satellite Positioning | / | / | / | / |
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| Antenna | / | Integrated PCB antenna | External WiFi stick antenna | / |
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| Data Interface | RS232 | RS232 | RS232 | RS232 |
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| Working Voltage | DC5V-12V(±5%) | DC5V ~DC12V | DC5V~DC12V | DC 5-12V |
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| Working Power | 2W | 1.5W | 1.5W | 1.5W |
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| SIM Card | / | / | / | / |
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| Memory | 8MB FLASH | Default configuration: 8 MB of FLASH | 2M | Default configuration: 4 MB of flash memory |
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| Working Temperature | -30°C~70°C | -30°C~70°C | -30°C~70°C | -30°C~70°C |
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| Working Humidity | 10%~90% relative humidity, non-condensing | 10%~90% relative humidity, non-condensing | 10%~90% relative humidity, non-condensing | 10%~90% relative humidity, non-condensing |
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| No.of Connections | One | One | One | One |
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| Serial Communication Rate | 9600 bps (adjustable from 1200 to 115200 bps) | 9600 bp | Default setting: 9600 bps (Adjustable from 1200 to 115200 bps) | Default setting: 9600 bps (Adjustable from 1200 to 57600 bps) |
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| Data Acquisition Interval | Default setting: 5 minutes | Default setting: 5 minutes | Default setting: 5 minutes | Default setting: 5 minutes |
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| User Configuration | App Configuration | AT+ command set | AT+ command set | AT+ command set |
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| Local web page configuration | Local web page configuration | Local web page configuration |
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| Remote server | Remote server | Remote server |
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| Bluetooth | Remote server | Bluetooth |
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| Firmware Upgrade | Local upgrade Remote upgrade | Local web page update Remote update | Local web page update Remote update | Local web page update Remote update |
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| Others | Real-time Control | Real-time control, breakpoint resume | Real-time Control Data resuming | Real-time control, breakpoint resume |
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