Vegetronix - Model VH400 - Stop Over-Watering With Soil Moisture Sensors
Water is the most precious resource on our planet. Measure it, control it, and conserve it, with our VH400 soil moisture sensor. The VH400 is an professional electronic soil moisture sensor. It is so sensitive, that it can measure the moisture in your hands when you touch its blade.
Product Details
Waterproof and Rugged
Made of durable ABS plastic, and fiberglass, our VH400 moisture sensor is absolutely water proof and rugged, ready for the most challenging application that you can throw at it. It can be buried at any depth in the ground, or be inserted above ground, or into the soil of your potted plants.
Ignores the Salt in your Soil
Most other sensors, especially conductivity or resistance based sensors, are infective, because salts and fertilizers found in soil bias their readings. The VH400 moisture sensor uses superior transmission line techniques as does (TDR) to measure the water moisture in any soil regardless of soil salinity.
Unlike resistive or conductivity sensors, our probes do not use exposed metal to make measurements. They will never corrode, or need to be recalibrated.
Thin Blades Prevent Root Damage
Imagine your doctor giving you a shot with a syringe used for elephants. Ouch! Your plants are no different, and they will thank you for not using giant probes to take soil moisture measurements.
We designed the blade of the sensor to be as slender as possible. It can be inserted into soil and pots with minimal disturbance to the vital root systems of your plants. We have yet to find another moisture sensor with a thinner blade.
Rapid Response Time
The VH400 sensors are extremely fast. The output response is instantaneous with changes to water moisture. When you pour water on a plant, you will see the change in moisture in real time. This rapid response time allows you to walk around, and spot check the moisture of different soils and plants, by quickly sliding in the blade, and taking a measurement. We offer a handheld moisture meter with the VH400 sensor for this purpose.
Interface Our Sensors to any System
The VH400 will easily interface to any decent data logger, or microcontroller. Customers have connected it to Arduino boards, electron particle IO boards, and a slew of common microcontrollers. The output ranges from 0 to 3V so any system that can read a voltage can interface to it. For evaluation use a common volt meter to read its output, and determine the soil moisture level.
Designed to be Indestructible
Our sensor design anticipates every problem you might encounter. We've added reverse polarity protection to the 3 wire interface. If by chance you connect the three wires from the cable in the incorrect order to power, signal and ground, that's okay. The probe will not be damaged.
Vegetronix Modular Building Blocks
We provide modular building blocks that you need to create your soil moisture application. With these building blocks, you can create systems that will monitor soil moisture, and automatically control watering.
For recording data, we carry simple low-cost data loggers, which can read up to 8 sensors. Waterproof wall mountable displays allow you to see your sensor data, near its source.
For remote viewing of data, we provide a WiFi Data Logger, which will read up to 4 sensors, and store data in the cloud. This Sensor Hub lets you remotely view your sensor data on your phone's web browser. You can even receive text messages, and email alerts.
We've partnered with the sensor cloud site - VegeCloud.com which will graph, store, and manage your water level sensor data.
Save Money - Stop Over Watering
We are passionate about helping you saving water, and money. We offer several solutions for your sprinkler systems.
Some sprinkler systems use contact closure rain sensors. These can be replaced with a combination of a VH400 sensor with a contact closure relay board. When the soil is wet, the relay contacts will close, simulating the result of a rain sensor. This is more accurate than a rain sensor, because you care about the soil moisture, and not whether it has rained.
If your sprinkler has no sensor input, use our Sprinkler Relay Boards. These connect between the wires of your sprinkler timer, and your valves. When the clock turns on a particular zone, the Sprinkler Relay Board blocks the signal to the valve, if the soil is already wet. It also turns off the valve mid-cycle as the moisture sensor reaches the desired moisture level.
Pays for Itself
Water is expensive. We have found that people over water by as much as 200%. Think about your savings, if you could cut your water bill in half. Our customers find that our products pay for themselves in as little as one month.
Bonus Features
The VH400 is very low power. It draws only 12mA when activated. For low power battery applications, the VH400 can be powered briefly before reading, and then shut down, to conserve battery power.
Not only does the VH400 measure soil moisture, but it can be used as a water level sensor. One side of the blade has ruled markings every 10mm for this purpose. As the sensor blade is dipped into water the voltage output will raise proportionally.
Our sensors come in standard cable lengths of 2 meters, 5 meters and 10 meters. See the ordering table below.
We Want you to be Happy
Ordering is easy and low risk. Since we build our own products at our factory, all of our products are in stock. When you place your order from our website, it will ship same day from our factory, and you'll have it in your hands in just a couple of days. We ship to nearly EVERY COUNTRY in the world.
Soil Moisture Sensor Probe Features
- Saves water and money.
- Pays for itself.
- Rugged design for long term use.
- Waterproof and can be buried at any depth.
- Thin blade does not disturb roots.
- Probe does not corrode over time.
- Reverse Polarity Protection.
- Rapid response time.
- Accurate and precise measurement.
- Insensitive to salinity.
- Low power for battery operation.
- Measures volumetric water content (VWC).
- Measures gravimetric water content (GWC).
- Output Voltage is proportional to moisture level.
- Wide input supply voltage range.
- Connect to any decent logger or control system.
Soil Moisture Sensor Probe Applications
- Replace sprinkler rain sensors.
- Save money - stop watering when your soil is wet.
- Create the perfect conditions for compost piles.
- Conduct scientific research.
- Monitor flooding.
- Get text messages and phone alerts from your plants.
- Protect concrete foundations by maintaining adequate soil moisture.
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