The CR300 is a multi-purpose, compact, low-cost measurement and control datalogger. It will concentrate data, making it available over varied networks and deliver it using your preferred protocol. The CR300 also performs automated on-site or remote decision making for control and M2M communications. The CR300 is ideal for small applications requiring long-term, remote monitoring and control.

The CR300 replaces the CR200, CR200X, CR211 & CR211X. While no longer available, support will still be provided for these earlier models.

There are a range of models available for different communications requirements, including ethernet, Wi-fi, radio and cellular.

If you are unsure, please contact us for advice on the best cellular model for your system. This may depend on your geographical area and cellular provider.

Benefits and Features

• Charge on-site battery (solar or ac-dc power converter) with inbuilt power regulator
• Operate on a very modest power budget
• Measure multiple analog voltage or current sensors
• Measure multiple pulse output or serial/digital sensors
• Connect via a wide variety of modems for remote telemetry
• Communicate using PakBus, Modbus, DNP3 and other standard protocols
• Send encrypted/secure email messages and alarms (TLS-encrypted SMTP)
• Campbell quality surge and ESD protection
• Simplified setup with PC connection using USB port

Key Specifications

• Memory: 10 MB flash for data storage, 5 MB flash for programs, 2 MB flash for operating system
• Clock Accuracy: ±1 min per month
• USB micro B for direct connection to PC (limited power source during configuration)
• Battery terminal pair for regulated 12 V power input or rechargeable 12 V VRLA for UPS mode
• Charge terminal pair for 16 to 32 V from dc power converter or 12 or 24 V solar panel
• One switched 12 V terminal for powering sensors or communication devices, 500 mA @ 20°C
• Two continuous 0.150 to 5 V terminals for resistive bridge measurements or sensor power
• Best Analog Accuracy: ±(0.04% of reading ± 6 µV), 0° to 40°C
• Best Effective Resolution: 230 nV (±34 mV range, differential measurement, input reversal, 50/60 Hz fN1)
• Operating Temperature Range: -40° to +70°C
• Internet Protocols: PPP, ICMP/Ping, Auto-IP(APIPA), IPv6, UDP, TCP, TLS, DHCP Client, SLAAC, DNS Client, Telnet
• Additional Protocols Supported: PakBus, SDI-12, Modbus RTU, Modbus ASCII, Modbus TCP/IP, DNP3