Air Quality
The CR1000 can monitor and control gas analyzers, par-
ticle samplers, and visibility sensors. It can also auto-
matically control calibration sequences and compute
conditional averages that exclude invalid data (e.g., data
recorded during power failures or calibration intervals).
Road Weather/RWIS
Our fully NTCIP-compliant Environmental Sensor Stations
(ESS) are robust, reliable weather stations used for road
weather/RWIS applications. A typical ESS includes a
tower, CR1000, two road sensors, remote communica-
tion hardware, and sensors that measure wind speed and
direction, air temperature, humidity, barometric pressure,
solar radiation, and precipitation. The CR1000 can also
measure soil moisture and temperature sensors, monitor
bridge vibrations, and control external devices.
Water Resources/Aquaculture
Our CR1000 is well-suited to remote, unattended moni-
toring of hydrologic conditions. Most hydrologic sen-
sors, including SDI-12 probes, interface directly to the
CR1000. Typical hydrologic measurements:
• Water level is monitored with incremental shaft
encoders, double bubblers, ultrasonic level trans-
ducers, resistance tapes, or strain gage or vibrating
wire pressure transducers. Some shaft encoders
require a QD1 Interface. Vibrating wire transducers
require an AVW1, AVW4, or AVW100 Interface.
• Well draw-down tests use a pressure transducer
measured at logarithmic intervals or at a rate based
on incremental changes in water level.
• Ionic conductivity measurements use one of the
switched excitation ports from the CR1000.
• Samplers are controlled by the CR1000 as a function
of time, water quality, or water level.
• Alarm and pump actuation are controlled through
digital I/O ports that operate external relay drivers.
Vehical Testing
This versatile, rugged datalogger is ideally suited for
testing cold and hot temperature, high altitude, off-
highway, and cross-country performance. The CR1000
is compatible with our SDM-CAN interface, GPS16-HVS
receiver, and DSP4 Heads Up Display.
The CR1000 can measure:
• Suspension—strut pressure, spring force, travel,
mounting point stress, deflection, ride
• Fuel system—line and tank pressure, flow, tempera-
ture, injection timing
• Comfort control—ambient and supply air tempera-
ture, solar radiation, fan speed, ac on and off, refrig-
erant pressures, time-to-comfort, blower current
• Brakes—line pressure, pedal pressure and travel,
ABS, line and pad temperature
• Engine—pressure, temperature, crank position,
RPM, time-to-start, oil pump cavitation
• General vehicle—chassis monitoring, road noise,
vehicle position and speed, steering, air bag, hot/
cold soaks, wind tunnels, traction, CANbus, wiper
speed and current, vehicle electrical loads
Other Applications
• Eddy covariance systems
• Wireless sensor/datalogger networks
• Mesonet systems
• Avalanche forecasting, snow science, polar,
high altitude
• Fire weather
• Geotechnical
• Historic preservation
A turbidity sensor was installed in a tributary of
the Cedar River watershed to monitor water quality
conditions for the city of Seattle, Washington.
Vehicle monitoring includes not only passenger cars, but loco-
motives, airplanes, helicopters, tractors, buses, heavy trucks,
drilling rigs, race cars, and motorcycles.
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