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Vegetronix Sensor
Para Medir Humedad Del Suelo
| Our patent pending soil
moisture sensor probes enable precise low cost monitoring of soil
water content. Because our probe measures the dielectric constant of
the soil using transmission line techniques, it is
insensitive to water salinity, and will not corrode over time as does
conductivity based probes. Our probes are small, rugged, and
consume under a milliamp of power.
We offer two probes in the VG400 series.
The VG400 which has an output range of 0 to 3V and and the VG400-LV
which has an output range of 0 to 1.8V related proportionally to
water content. The VG400-LV is so power efficient that it can
be run continuously for over 300 hours from a single coin battery,
or over 5 years if the soil is sampled once per minute.
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VG400 - Sensor Para Medir Humedad Del Suelo
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Sensor Para Medir Humedad Del Suelo
- Irrigation and sprinkler systems.
- Moisture monitoring of bulk foods.
- Rain and weather monitoring.
- Environmental monitoring.
- Water conservation applications.
- Fluid level measurements.
Soil Moisture Sensor Probe Features
- Extreme low cost with volume pricing.
- Not conductivity based.
- Insensitive to salinity.
- Probe does not corrode over time.
- Rugged design for long term use.
- Small size.
- Consumes less than 600uA for very low power
operation.
- Precise measurement.
- Measures volumetric water content (VWC) or
gravimetric water content (GWC).
- Patent pending technology.
- Output Voltage is proportional to moisture
level.
- Wide supply voltage range.
- Can be buried and is water proof.
- Probe is long and slender for wider use,
including smaller potted plants.
Other Vegetronix Products of Interest
Soil Moisture Sensor Probe Pricing and Ordering Info
Contact
us for pricing information.
| ORDER INFO |
| Part Number |
Description |
Price |
Purchase |
| VG400 |
Standard Voltage, Soil Moisture Sensor Probe |
$29.95 |
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| VG400-LV |
Low Voltage, Soil Moisture Sensor Probe |
$29.95 |
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Soil Moisture Sensor Probe Evaluation Board
The quickest way to evaluate if the VG400 series is
right for you is to also order our sensor evaluation board.
The VG-RELAY
Control Board accepts input from a single sensor and controls a solid
state relay. There are two versions, one which closes contacts when
the sensor detects wetness, and another which closes contacts when the
dryness is detected. The dry/wet threshold is easily set by an an on
board thumbwheel. With this evaluation board, within minutes
you'll be using your VG400 soil moisture probe to control, valves, alarms
or home automation systems.
Soil Moisture Sensor Probe Specifications
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VG400 Probe (Standard
Voltage Probe) |
| Power consumption |
< 800uA |
| Supply Voltage |
3.3V to 20 VDC. |
| Output |
0 to 3V linear with moisture
content |
| Dimensions |
See drawing below. |
| Power on to Output stable |
400 ms |
| Output Impedance |
100K ohms |
| VWC to Voltage Equation: |
VWC= V*21.186 -10.381 |
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VG400-LV (Ultra-Low Voltage Probe) |
| Power consumption |
< 600uA |
| Supply Voltage |
2.0V to 20 VDC. |
| Output |
0 to 1.8V linear with moisture
content |
| Dimensions |
See drawing below. |
| Power on to Output stable |
400 ms |
| Output Impedance |
100K ohms |
| VWC to Voltage Equation: |
VWC= V*39.683-5.556 |
* Results may vary depending on soil type and sol compaction.
(This graph show VWC up to 50 because this particular soil has a
holding capacity of 50. The probe will work over the full range of VWC.)
* Results may vary depending on soil type and sol compaction.
(This graph show VWC up to 50 because this particular soil has a
holding capacity of 50. The probe will work over the full range of VWC.)
Soil Moisture Sensor Probe Wiring Table
| Bare |
Ground |
| Red |
POWER: 3.3V to 20 VDC. |
| Black |
OUT: (0 to 3V proportional to
moisture content.) |
VG400 Soil Moisture Sensor Probe Drawing
VG400 Soil Moisture sensor Drawing
Soil Moisture Sensor Probe Technical Literature
See our Soil
Moisture Sensor Probe Application
Notes for reference designs and information on how to use the soil
moisture probe in larger systems.
How to Get Started with the Soil Moisture Sensor
Probe
The best way to get started is to order a few sample
soil moisture sensor probes and try them out in your application. Contact
us now to purchase samples.
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