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| Brand | Campbell |
|---|---|
| Origin | USA |
| Model | CR300 |
| CPU | ARM Cortex-M4 @ 144 MHz |
| Internal Memory | 80 MB data storage, 5 MB program storage, 2 MB OS storage |
| Clock Accuracy | ±1 minute/month |
| USB Interface | Micro-B, USB 2.0 Full-Speed (12 Mbps) |
| Power Input | 12 V terminal or 12 V battery/UPS |
| Excitation Output | 1 × switched 12 V (500 mA @ 20°C) |
| Analog Inputs | Differential, ±34 mV range, 230 nV resolution, accuracy ±(0.04% of reading ± 6 µV) at 0°–40°C |
| Operating Temperature | –40° to +70°C |
| Dimensions | 14 × 7.6 × 5.1 cm |
| Weight | 242 g |
| Communication Protocols | PPP, ICMP/Ping, Auto-IP (APIPA), IPv6, UDP, TCP, TLS, DHCP Client, SLAAC, DNS Client, Telnet, PakBus, SDI-12, Modbus RTU/ASCII/TCP, DNP3 |
| Environmental Protection | High-level surge and ESD protection |
| Data Transmission | Encrypted email & alarm notifications via TLS |
| Configuration | USB direct-to-PC |
| Compliance | Designed for long-term unattended field deployment in hydrological, meteorological, environmental, and industrial monitoring applications |
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