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Campbell Scientific CR1000X

World-Class Environmental Datalogger
Accurate, Rugged, Reliable

The CR1000X is our flagship datalogger that provides measurement and control for a wide variety of applications. Its reliability and ruggedness make it an excellent choice for remote environmental applications, including weather stations, mesonet systems, wind profiling, air quality monitoring, hydrological systems, water quality monitoring, and hydrometeorological stations.


The CR1000X is a low powered device that measures sensors, drives direct communication and telecommunications, analyzes data, controls external devices, and stores data and programs in onboard, nonvolatile storage. The electronics are RF shielded by a unique sealed, stainless-steel canister. A battery-backed clock assures accurate timekeeping. The onboard, BASIC-like programming language, common to all contemporary Campbell Scientific dataloggers, supports data processing and analysis routines.

Benefits and Features

  • Operates in extreme environments with a standard operating range of -40° to +70°C and extended operating range of -55° to +85°C
  • Connects directly to a computer’s USB port
  • Captures quickly changing data values with fast analog measurement capabilities
  • Differentiates even slight changes in data values with high resolution measurements
  • Includes two non-isolated current input channels for directly connecting sensors with 0-to-20 mA or 4-to-20 mA current outputs
  • Contains an onboard CPI port for hosting Campbell high speed sensors and distributed modules (CDM)
  • Directly connects to Ethernet
  • Includes microSD card drive for extended memory requirements
  • Provides simple serial sensor integration and measurement with SDI-12, RS-232 and/or RS-485
  • Supports full PakBus networking
  • Includes embedded web page for direct connection via web browser



32 bit with hardware FPU, running at 100 MHz

Internal Memory:

128 MB flash and 4 MB battery-backed SRAM

MicroSD Drive

for extended data storage up to 16 GB

Clock Accuracy

±3 min per year, optional GPS correction to 10 μs

USB micro B

for direct connection to PC, 2.0 full speed, 12 Mbps

10/100 Ethernet RJ45

for LAN connection

CS I/O Port

for connection to Campbell Scientific communications and displays

RS-232/CPI Port

for terminal expansion using Campbell Distributed modules (CDM)

Supported Protocols

PakBus, Modbus, DNP3, NTCIP, NMEA 0183, and many more

Removable Power Terminal

for connecting BPALK, PS150, PS200, or other power supply

Two Switched 12 V Terminals

for powering sensors or communication devices, 1.3 A @ -40°C, 0.47 A @ 80°C

Power Drain @ 12 Vdc:

< 1 mA (idle), 1 mA (active, 1 Hz scan), 55 mA (active, 20 Hz scan), active + 25 mA (RS-232/RS-485), active + 48 mA (Ethernet link)

Four Sensor Excitation (VX1 - VX4)

or sensor excitation or regulated supply

100 Ohm Resistive Ground Terminal

for measuring 0 to 20 mA or 4 to 20 mA outputs

Analog Input Terminals (SE1 - SE16)

* 16 single-ended or 8 differential inputs with ±5000 mV ranges
* 24 bit ADC
* Ratiometric Bridge
* Thermocouple
* Period Averaging

Two Pulse Counting Terminals (P1, P2)

* Switch closure
* High frequency counter
* Low level AC
* High frequency counter

Eight Control Terminals (C1 - C8):

C terminals are software configurable for digital functions
* Digital I/O functions consist of 5 V output and 3.3 V input logic levels for:
* SDI-12
* Serial communication Tx/Rx pair
* High frequency counter
* Switch closure
* General status/control
* Voltage source 5 V: 10 mA @ 3.5 V
* Interrupts

Best Analog Accuracy

(0.04% of measurement + offset)

Best Effective Resolution:

0.02 μV RMS

Operating Temperature Range

-40° to +70°C standard,
-55° to +85°C extended


0.86 kg (1.9 lb)


23.8 cm x 10.1 cm x 6.2 cm (9.4 in x 4.0 in x 2.4 in)