Soil Moisture Sensor with Data Logger
- Automatic Weather Station (GP2)
- Equitensiometer (EQ3)
- Data Loggers (GP2, GP1, DL6)
- Net Radiometer (NR2)
- Plant Canopy Analyser (Sunscan)
- Porometer (AP4)
- Image Analysis System with Convyer Belt
- Radiation Sensors (BF5, SPN1, ES2)
- Single Point Soil Moisture (THETA PROBE)
- Soil Moisture Meter (Profile Probe)
- Sunshine Pyranometer (SPN1)
- Compact Weather Station-GMX501
- WET Sensor ( Water content, Ec & Temp.)
- Soil Moisture Kit (SM150)
- SM150T Soil Moisture & Temperature Sensor
- PR2 Profile Probe with SDI 12 Interface
- WET 150 KIT ( Soil Moisture, Ec & Soil Temp)
- Soil Moisture Sensor with Data Logger
- Automatic Soil Respiration System (ACE)
- Anthocyanin Content Meter (CCM 200A plus)
- Chlorophyll Content Meter (CCM 200 plus)
- Chlorophyll Fluroscence System (OS5P+)
- Chlorophyll Meter (CCM-300)
- CO2 Monitor/Controller (Lamda-T)
- Chlorophyll Fluorometer (OS1P)
- Handheld Chlorophyll Fluorometer OS30P+
- YII METER
- Portable Leaf Area Meter (AM400)
- Portable Photosynthesis System
- FV FM METER
- Multi-Pigment-Meter (MPM-100)
- EGA60 Multi-SOIL RESPIRATION SYSTEM
- Fluorometer and Gas Exchange System
- Plant Stress Kit
- PSP32 Monitoring Fluorimeter System
- SRS-SD1000 Portable Soil Respiration
Soil Moisture Sensor with Data Logger
WET150 Soil Moisture sensor can be read with a WET150 Meter. Multiple WET150s need a GP2 or other SDI-12 controller. Delta-T extension cables are terminated in M12 thumb-screw connectors. Other cable types can be used, but this system has several advantages. Cables can be joined together to extend runs, or can be connected via a T-piece to branch the network and to connect to sensors. The M12 connector system makes it quick and easy to build and modify SDI-12 networks. Later if a network fails due to a faulty sensor or damaged cable, it is easy to isolate sections by temporarily disconnecting network branches or individual sensors to trace the fault.
The SDI-12 GP2 Data Logger is a powerful 12 channel data logger that is easy to use, versatile, rugged and reliable. It can log most sensor types and accepts voltage, resistance, current, potentiometer, bridge, counter, frequency, and digital state inputs.
4 MB of FLASH memory enable storage of 2.5 million readings (typical). Data can be collected by a laptop locally via USB/RS232 or remotely using the cellular modem options.
Technical Specification
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Volumetric Water Content (%vol) |
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Accuracy |
± 3%vol (with a calibration matching the soil / substrate) |
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Range |
Accurate range: 5 to 100%vol, ECb 0 to 500mS.m-1. Full range: 0 to 100%vol |
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Permittivity (ε’) |
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Accuracy |
± (3% of reading + 0.8 ε’) 1 → 40 for ECp ≤ 800mS.m-1 ± 5% of reading 40 → 80 for ECp ≤ 500mS.m-1 |
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Range |
Accurate range: 1 to 80, full range: 1 to 90 |
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Bulk soil conductivity (ECb) |
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Accuracy |
± (6% of reading + 10 mS.m-1) |
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Operating range |
Accurate range: 0 to 1200mS.m-1 Full range: 0 to 2000mS.m-1 |
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Temperature (WET150 must be fully buried to accurately measure soil temperature) |
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Accuracy |
± 0.5 °C |
± 0.7 °C |
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Range |
Accurate range: 0 to +40 °C |
Full range: -20 to +60 °C |
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Operating specifications |
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Interface |
SDI-12 version 1.3 |
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Max cable length |
>100 m |
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Power requirement |
6 to 20 V~22 mA over 12 ms (with short 45mA peak) |
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Operating range |
-20 to +60 °C (sensor does not detect ice) |
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Environmental |
IP68 |
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Sample volume |
55 x 70 mm diameter |
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Dimensions |
143 x 40 mm diameter |
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Weight |
77 gm (without cable) |
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Contact Details
Inderprastha Colony Sector- 30-33,
Faridabad (Haryana) India -121003
