Updated:2023-02-15
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Measures volumetric water content
Affordable: ideal for large sensor networks
Simple sensor with excellent accuracy
Small volume of influence (eg., field spatial variability, lab column studies, or greenhouse research)
70 MHz frequency minimizes salinity and textural effects
Factory calibrations included for mineral soils, potting soils, rockwool, and perlite
Small size means easy installation
Plug and play capability
Easy integration with other systems
Use with ZL6 data logger to collect data remotely
Volumetric Water Content(VWC) | Range | 0-100% |
Resolution | 0.001 m³/m³ VWC in mineral soils,0.25% in growing media | |
Accuracy | Generic Calibration: ±0.03 m³/m³ typical in mineral soils that have solution EC <8 dS/m | |
Medium Specific Calibration: ±0.02 m³/m³ in any porous medium (± 2%) | ||
Measurement Specifications | Measurement Volume | See comparison article |
Communication Specifications | Output | 10%-50% of excitation voltage (250-1,250 mV at 2,500 mV excitation) |
Data Logger Compatibility | METER dataloggers(ZL6,EM50/60 series,Em5b) or any data acquisition Compatibility systems capable of switched 2.5-3.6 VDC excitation and single-endec voltage measurement at greater than or equal to 12-bit resolution | |
NOTE:Thesecalibration constants only apply to 2,500-mV excitation;use ofthese numbers with any other excitation voltage results in erroneous readings! | ||
Physical Specifications | Dimensions |
Length:8.9 cm (3.50in) Width:1.8 cm (0.71in) Height: 0.7 cm (0.28in) |
Prong Length | 5.0 cm (1.97 in) | |
Operating Temperature Range |
Minimum:-40.00°C Typical: NA Maximum:60.00°C |
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NOTE:Sensors may be used at higher temperatures under certain conditions:contact Customer Support for assistance. | ||
Cable Length |
5 m(standard) 40 m (maximum custom cable length) |
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NOTE:Contact Customer Support if a nonstandard cable length is needed. | ||
Connector Types | 3.5-mm stereo plug connector or stripped and tinned wires | |
Electrical and Timing Characteristics | Supply Voltage (VIN to GND) |
Minimum:2.5 VDC at 10 mA Typical: NA Maximum:3.6 VDC at 10 mA |
Measurement Duration | Maximum:10 ms | |
Other | Compliance |
Manufactured under ISO 9001:2015 EM ISO/IEC 17050:2010 (CE Mark) 2014/30/EU 2011/65/EU EN61326-1:2013 EN50581:2012 |
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