CR800
CR800
RetiredMeasurement and Control Datalogger
No longer available to order
This product is retained for service, documentation, and compatibility information.
- Model:
- CR800
- Item Number:
- 18621
- Warranty:
- 3 years
- Compliance:
- needs power supply
Overview
The CR800 is a smaller, research-grade data logger designed for stand-alone operation in harsh, remote environments. It is intended for smaller configurations in which fewer sensors will be measured. Each CR800 reads input from sensors, then transmits the data via a communication peripheral; most sensors and telecommunication devices are compatible. Multiple CR800s can be configured as a network or units can be deployed individually.
Another data logger, the CR850, is similar to the CR800, but it has an integrated keyboard and display screen for on-site control.
Key Advantages
Research-grade power for smaller installations
Technical Description
The CR800 consists of measurement electronics encased in a plastic shell and an integrated wiring panel. This data logger uses an external keyboard/display and power supply. Low power consumption allows the CR800 to operate for extended periods on a battery recharged with a solar panel—eliminating the need for AC power. The CR800 suspends execution when primary power drops below 9.6 V, reducing the possibility of inaccurate measurements.
The on-board operating system includes measurement, processing, and output instructions for programming the data logger. The programming language, CRBasic, uses a BASIC-like syntax. Measurement instructions specific to bridge configurations, voltage outputs, thermocouples, and pulse/frequency signals are included. Processing instructions support algebraic, statistical, and transcendental functions for on-site processing. Output instructions process data over time and control external devices.
Benefits
- Ideal applications include wind profiling, weather stations, ETo/agriculture, air quality, soil moisture, water level/stage, aquaculture, vehicle testing, Time Domain Reflectometry, SCADA, and water quality
- Simpler in design, the CR800 and CR850 are easier to program and wire.
- Serial communications with serial sensors and devices supported via I/O port pairs
- Contains custom ASIC chip that expands pulse count, control port, and serial communications capabilities
- Compatible with channel expansion peripherals allowing you to expand your system
- Supports PakBus, Modbus, SDI-12, and DNP3 protocols
- Includes both an CS I/O port and an RS-232 port for connecting communication devices
- Gas Discharge Tube (GDT) protected inputs
- Battery-backed clock that ensures accurate time is maintained while data logger is disconnected from battery power
- Program with LoggerNet, PC400, or Short Cut to fit your setup
Specifications
- -NOTE-
- Note: Additional specifications are listed in the CR800-Series Specifications Sheet.
- Operating Temperature Range
- -25° to +50°C
(standard)
Non-condensing environment - Maximum Scan Rate
- 100 Hz
- Analog Inputs
- 6 single-ended or 3 differential
(individually configured)
- Pulse Counters
- 2
- Voltage Excitation Terminals
- 2
(VX1, VX2)
- Communications Ports
- CS I/ORS-232
- Switched 12 Volt
- 1 terminal
- Digital I/O
- Certain digital ports can be used to count switch closures.4 I/Os or 2 RS-232 COM
I/O ports can be paired as transmit and receive for measuring smart serial sensors. - Input Limits
- ±5 V
- Analog Voltage Accuracy
- ±(0.06% of reading + offset)
at 0° to 40°C
- ADC
- 13-bit
- Power Requirements
- 9.6 to 16 Vdc
- Real-Time Clock Accuracy
- ±3 min. per year
(Correction via GPS optional.)
- Internet Protocols
- FTP, HTTP, XML POP3, SMTP, Telnet, NTCIP, NTP
- Communication Protocols
- PakBus, Modbus, DNP3, SDI-12, SDM
- Idle Current Drain, Average
- 0.7 mA
(@ 12 Vdc)
- Active Current Drain, Average
- 1 mA
(1 Hz sample rate @ 12 Vdc without RS-232 communication)
16 mA(100 Hz sample rate @ 12 Vdc without RS-232 communication)
28 mA(100 Hz sample rate @ 12 Vdc with RS-232 communication)
- Dimensions
- 24.1 x 10.4 x 5.1 cm
(9.5 x 4.1 x 2 in.)
- Weight
- 0.7 kg
(1.5 lb)
Accessories
(6)CR1000KD
Keyboard/Display for CR1000(X), CR800, or CR6
OrderableCD100
Mountable Display with Keypad
OrderableSC32B
Optically Isolated RS-232 Interface
Orderable17394
Converter, USB to DB9 Pin (Male) RS-232
OrderableSC110
Two Cables, RS-232 to Data Logger Control Port
Orderable27373
14 to 28 AWG 5-Position Terminal Connector with Lever Nut
Orderable
Related Resources
Case Studies

Alberta: Crop Dusting
Wind speed and direction monitoring for crop dusting
Southern Alberta, Canada
April 12, 2018
View
Northern California: Hydro-SCADA
Upgrading watershed scale hydrologic data network to meet hydroelectric operational requirements
Yuba County, California
April 5, 2016
View
Texas: Transitioning to ALERT2
Upgrading system that monitors flood conditions and provides warnings
Harris County, Texas
April 6, 2016
View
Panama: Turbidity in Mine Runoff
Measuring turbidity in mine runoff with a network of monitoring stations
District of Donoso, Colón Province, Panamá
August 30, 2016
View
Showing 4 of 24 results
See all Case StudiesDocuments
- Technical Paper
Data Streaming
July 2023
View Document - Brochure
CR800-series Specifications
View Document - Compliance
CR800, CR850, and 20729 UK Declaration of Conformity
View Document - Technical Paper
HTTP Troubleshooting
January 2026
View Document
Showing 4 of 19 results
See all DocumentsDownloads
- CR800 OSv32.07Login required
May 15, 2024
OS and FirmwareExecution of this download installs the CR800 Operating System and Compiler on your computer. It also updates the CR800 support files for the CRBasic Editor. Note: This OS has crossed the 2 Meg CR800 size limit for remote download. The OS must be downloaded to the 2 Meg CR800 via direct connect with the Device Configuration Utility. All OS download methods are supported by the 4 Meg CR800. Upgrading from versions prior to version 28 of the Operating System will reset the datalogger’s CPU drive. This is due to a change in the format of the file system from FAT16 to FAT32. In order for the datalogger to operate correctly, as part of the upgrade, the CPU drive is formatted to FAT32. Any programs stored and running from the CPU drive will be lost. It is not recommended to update the datalogger’s Operating System over a remote connection where program control regulates the communication equipment (turning it on or off, etc.). In these cases, an on-site visit and a backup using DevConfig’s backup utility is necessary to update the datalogger’s Operating System. Watch the Video Tutorial: Sending an OS to a Local Datalogger. In all cases where the datalogger is being updated from an Operating System prior to 28, the use of DevConfig’s backup utility is recommended due to the CPU drive being formatted using the new FAT32 format.
- Device Configuration Utilityv2.36Login required
June 22, 2026
Software ApplicationsA software utility used to download operating systems and set up Campbell Scientific hardware. Also will update PakBus Graph and the Network Planner if they have been installed previously by another Campbell Scientific software package. Supported Operating Systems: Windows 11 or 10 (Both 32 and 64 bit)
Videos and Tutorials

LoggerLink Software | An Introduction
January 29, 2013 (12:11)
A mobile app for iOS and Android
Watch
LoggerNet Software | Network Planner
April 16, 2013 (4:05)
Designing a PakBus™ network using the Network Planner tool in LoggerNet
Watch
Toolbox for Installation and Maintenance
November 5, 2013 (2:21)
Helpful toolbox items for use in the field
Watch
SDI-12 Sensors | Transparent Mode
November 27, 2013 (7:06)
Communicating with an SDI-12 sensor
Watch
Showing 4 of 64 results
See all Videos and TutorialsPress Releases
Services Available
- Repair
- Yes
- Calibration
- Yes
- Free Support
- Yes