WET150 Multi-Parameter Soil Sensor
WET150
WET150 KIT
The WET150 sensor is inexpensive but has three functions: soil moisture, pore water conductivity (EC), and soil temperature.
The new digital multi-parameter WET150 soil sensor represents the culmination of forty years research and development at Delta-T Devices. Through a number of key design innovations it delivers research-grade accuracy and build quality at a price point not previously thought possible. It is the ideal sensor for research of soil conditions – and for integration into SDI-12 environmental and horticultural measurement/control systems.
Difference between ECb and ECp
ECb (bulk value of EC), measure temperature.
ECp (Pore Water Conductivity available to plants, a more practical parameter than ECb. Pore Water Conductivity)
Features
・NEW lower cost research-grade multi-parameter sensor
・Measures moisture, temperature and EC
・Digital SDI-12 for easy system integration
・Rugged, buriable and low power
・Detachable and extendable cable system
WET150 body size details
WET150 setting image
WET150 vs WET2
| WET150 | WET2 | |
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| Parameter | VWC, EC, Temperature | VWC, EC, Temperature |
| VWC Accuracy | ±3% | ±3% |
| Measurement range | 5~100% | 0~100% |
| Temperature range | -20°C ～ 60°C | -5 ～ 50°C |
| Frequency dielectric constant | 100 MHz | 20 MHz |
| EC Accuracy | ± (6% + 10mS.m-1 ) | ± 5% or ± 10% |
| Temperature Measurment | require to bury whole sensor body | Sensor rod will measure temperature |
| output | SDI-12 protocol 1.3 | Serial TTL Data |
| Data logger/ readout unit | GP2, WET150 meter, Data logger for SDI12 | GP1、GP2、HH2 |
WET150仕様
| VWC | ECb | Temperature | |
| Accuracy | ± 0.03 m3 .m-3 (3%) | ±(6% + 10mS.m-1) | ± 1.0°C |
| Measurement range | 0 ~ 1.0 m3 .m-3 | 0 ~ 2000 mS.m-1 | -20°C ~ +60°C |
| Range to which the above accuracy applies | 0.05 ~ 1.0 m3 .m-3 ECb: 0 ~ 500 mS.m-1 |
0 to 1200 mS.m-1 | -20°C to +50°C |
| Output | SDI-12 protocol 1.3 (www.sdi-12.org) | ||
| Supply voltage | 6 ~ 20 V | ||
ENVIRONMENTAL |
IP68 | ||
| Size | Bosy：143(H) x 40 mm(W) Rod：φ2.5mm、51mm |
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| Weight | 77g (not include cable) | ||
WET150 Meter Specification
| Control | Keypad |
| Battery | 2 x AA alkaline batteries |
| BATTERY LIFE | > 2400 readings |
| ENCLOSURE RATING | IP65 |
| Operation temperature | 0~40℃ |
| Display | 2 line x 16 character |
| Size | 130×66×25 |
| Cable length | 90cm |
| Weight | 160g |
Since respond speed is slow for temperature, it is not suitable for measuring soil temperature with WET150 KIT.
WET150 + GP2
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WET150 |
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5m cable (Connection for GP2 and WET150) |
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Extension cable(1,5,10,25m) |
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GP2-NTP (connect several WET150） |
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GP2 data logger |
Those who want to convert RAW Value to VWC such as Mineral
A conversion sheet is available.
Please download from the box below.