
CRS451/CRS456 Submersible Water-Level Recording Sensor
• Fast scan rate
• Large data storage capacity
• High accuracy
• Long battery life
• Data retrieval through sealed USB connector
Measurement Time: < 1 s typical
Output: micro USB
Internal Data
Collection Memory: 4 MB
HydroSci Supported
Operating Systems: Windows XP, Windows Vista, or Windows 7
Logging/Scanning Modes: Standard, Delta, Logarithmic
Power Requirements: Internal user-replaceable lithium battery
Battery Life: 5+ years when logging interval is once per
hour
Power Consumption
Quiescent Current: < 80 μA
Measurement/
Communication Current: 4 mA for 1 s measurement
Measurement Ranges
1
:
Accuracy
Pressure Reading
2
: 0.1% full-scale range TEB
3
Temperature: ±0.2°C
Resolution: 0.0035% full-scale range
Overpressure: 2x pressure range
Dry Storage Temperature: –30° to 80°C
Operating Temperature: 0° to 60°C
3
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