< img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=1724791474554128&ev=PageView&noscript=1" />

Sensor de águaPCB

  • Entrega rápida
  • Melhor serviço ao cliente
  • Mais de 20 anos de experiência
  • Wide range of water sensor PCB


Water Sensor find the presence of water using reveal PCB traces. The sensor is form alternation traces of Ground and Sensor signals.

The sensor traces are feeble pulled up using 1MΩ resistor. The resistor will pull the sensor trace value higher until a drop of water shorts the sensor trace to the trace.

This circuit would work with digital I/O pins of Arduino or you could make it with the analog pins to detect the amount of water induced contact among the grounded and sensor traces.

Where are water sensors used

Where are water sensors used?

Water sensors discover applications in nuclear power plants, automobiles for measuring the amount of gasoline left in the fuel tank,engine oil, cooling water,brake/power steering fluid.

Industrial applications of the water level sensors include water level sensing in transport and storage tanks and water remedy tanks.

What is a smart water sensor?

Smart water sensors could have a helpful with you to detect a leak before it caused damaged When water (or high humidity, or a danger for freezing pipes) occurs, sensors build off a physical alarm or trigger an alert to be connected via WiFi to your phone.

Some systems couldbe even automatically shut down valves to prevent major damage.

smart water sensor

Your Best Water Sensor PCB Partner

water sensor PCB

Venture is a leading manufacturer of quality water sensor PCB in the industries. By using our advanced technology and unique technique, we can manufacture excellent quality water sensor PCB to support your projects.

Venture has a great experience in supplying water sensor PCB to different industries throughout the world. So, if you need excellent quality and certified manufacturer of  water sensor PCB, Venture is the best option for you.

Your Leading Water Sensor PCB Supplier in China

Venture own the widest selection of water sensor PCB. We can supply the best quality of water sensor PCB which is suited to your desired applications.

water sensor PCB

Venture water sensor PCB is ideal at saving power. Normally, regulating water levels can consume electricity and wastewater. However, with automatic controllers, the electricity usage is limited as well as less water needed to regulate supply.

Another advantages of our water sensor PCB is providing a cost effective. It can helps save money by limiting the waste of water and electricity. These devices accurately regulate how much energy is used to protect against any unnecessary water usage. Over time, the money saved is quite substantial.

water sensor PCB

Venture water sensor PCB is also can maximize the water usage provided during midday while automatically lessening the water usage at night.  This results in an appropriate level of water at all times being maintained, while providing you with the maximum use of your water at the appropriate times.

Venture can provide reliable water sensor PCB which can support to your projects. We are the best supplier when it regards PCB products like water sensor PCB, moisture sensor pcb, pressure sensor PCB and many more.

water sensor PCB

At venture, you can guarantee the best and outstanding quality of water sensor pcb. We prioritize the satisfaction of our loyal customers . That’s why we make sure to deliver the great quality of every products.

You may contact us for your orders and for more information!

Water Sensor PCB: The Ultimate FAQ Guide


I know you have many questions about water sensor PCB.

That’s why this guide will explore everything you need to know about water sensor PCBs.

So, read this guide to learn more.

What Is Water Sensor PCB?

Water sensor for rain gauge

Water sensor for rain gauge

A water sensor PCB is a circuit board you employ in sensor devices to determine the water level across different functions.

You can have different configurations of water sensor PCBs to make float sensors, ultrasonic sensors and water pressure sensors.

You use water sensor PCBs in detecting water presence especially where you are not to have water such as a leakage.

Furthermore, you can furnish a water sensor PCB to automatically shut down water supply when it detects a leakage for instance.

Which Are The Main Components Of Water Sensor PCB Assembly?

You find the following main components in the assembly of a water sensor PCB assembly:

Water sensor PCB circuit

Water sensor PCB circuit


You find water sensor PCBs composed mainly of transistors which switches current to electrical probes.

The probes provide an electrical communication path between the transistors and LEDs.


Light emitting diodes in a water sensor PCB carry out the function of indicators.

Where you have rising water levels, the transistors switch current to LEDs via electrical probes causing them to glow.


Electrical resistors provide restriction to electric current flow in accordance with the rating of the water sensor PCB.

You can have multiple resistors in different connections with your water sensor PCB to achieve a desired overall resistance level.


A transformer is preferable rather than a rectifier due to the need of using AC power supply of a pure form.

You can employ a transformer with a power output in the milliampere range from a voltage source.

What Is The Working Temperature And Humidity Of Water Sensor PCB?

The working temperature and humidity of a water sensor PCB influences its functionality and performance.

Different factors such as geographical location and climate patterns influence the temperature and relative humidity of an area.

Relative humidity refers to the quantity of water vapor in the air.

Controlling the temperature and relative humidity of a water senor PCB is fundamental in ensuring good performance.

Having high humidity levels can affect the attachment of components on a water sensor PCB leading to detachments.

Contrarily, very low humidity can result in the quick evaporation of flux resulting in an insufficient attachment of board components.

Having excess temperature melts the solder paste weakening components attached to the water sensor PCB.

On the other hand, low temperature can result in poor adhering of the components due to highly viscous solder paste.

You find the working humidity of a water sensor PCB provided as a range rather than absolute value.

You consider an operating range of between 35 % and 65 % relative humidity as ideal for a water sensor PCB.

Furthermore, you can operate your water sensor PCB comfortable within a temperature range of 68 to 78 oF.

Attaining these operating ranges where not naturally possible requires implementation of certain control measures such as air conditioning.

What Are The Key Features Of Water Sensor PCB?

You find different features on a water sensor PCB including the following:

  • Water sensor PCBs lack moving parts with their construction consisting semiconductor devices such as transistors and resistors.
  • You find having enclosures for water sensor PCBs water resistant prevents the entry of water into the circuit board.
    Water can cause a malfunctioning of the device via short circuits or other electrical failure.
  • You find a rugged construction of a water sensor PCB which makes the devices reliable over a long period.
  • Having a water sensor PCB allows you to make precise measurements with the provision of instantaneous results.
    Additionally, you can determine considerable changes in the water level when using a water sensor PCB.
  • A water sensor PCB releases an output voltage which is proportional to the level of liquid under observation.
  • The electrical probes in a water sensor PCB have high resistance to corrosion along an extended service life.
  • You can employ a water sensor PCB for different fluid types and not just water.
  • Operating a water sensor PCB requires very low input power while capable of using a wide range of supply voltage.

Which Are The Common Water Sensor PCB Materials?

The water sensor PCB consists of two major parts: the conductive layer and the insulating layer.

The two distinct parts consist of different materials with the associated property of conduction and insulation respectively.

You find the material you employ on the water sensor PCB determines its thermal, electrical and mechanical characteristics.

The following materials are common on a water sensor PCB:


The conductive part of the water sensor PCB encompasses copper material which has good electrical transfer properties and reduced resistance.

Additionally, you find copper widely available making it a low cost alternative to other superior metals such as silver and gold.


You have many water sensor PCBs furnished on a rigid board consisting of substrate material of a rigid nature.

Ceramic material such as aluminium nitride finds common use for such rigid boards for various reasons.

Using ceramic material offers your board impressive insulation quality due to its high thermal conductivity.

Furthermore, ceramic material can sustain high temperatures of operation while providing high resistance to water absorption.


You also find FR-4 material employed for water sensor PCBs consisting of a combination of glass fibre and epoxy resin.

When compared to ceramic material, FR-4 offers you a cheaper and affordable option with increased versatility.

Alongside good electrical insulation, you find FR-4 has impressive dielectric qualities with high strength-to-weight ratio.

Additionally, you find using it in water sensor PCB possible due to its favorable resistance to moisture.

What Are The Types Of Water Sensors Used In Water Sensor PCB?

Water sensors allow you to determine the level of water in different containments such as storage tanks.

You can also employ these sensors to determine leakages of water from their enclosures.

There are different configurations of water levels sensors employing different technologies in the circuit board construction.

Consequently, we have different available types of water sensors as follows:

Rain water sensor PCB

Rain water sensor PCB

Sensores de Nível Óptico

The operation of an optical level sensor is simple consisting of a phototransistor and a light emitting diode.

Exposure of the sensor tip to the atmosphere when in water causes a low energy infrared refraction to a detector.

You find the optical level sensor favorable when employed for many sensing applications that are point level with reliability requirements.

You can use this sensor type for various detection levels in storage vessels of any size.

Where you are likely to experience leakages, optical level sensors are useful in detecting saving considerable costs in losses.

These sensors can detect very small liquid quantities with the capability to withstand high temperatures and pressure.

Additionally, you find these sensors are compact and consist solid state components thus lack movable parts.

However, the sensor requires power and having to place the sensor in the water or liquid can be contaminating.

Float Switch Sensor

A float switch sensor consists of a magnet and switch of a magnetic reed fashioned in a floating device.

As the liquid media changes in level, so does the float causing a corresponding opening or closing of the switch.

You note that the float switch sensor as a simplified design that is cost effective and reliable. You can mount the float switch sensor either vertically or horizontally depending on your storage tank’s design and construction.

Floating switch sensors have no power needs finding direct use for different liquid media such as water and chemicals.

Nonetheless, these sensor type consist moving parts and requires direct contact with the media.

Conductive/Resistive Level Sensors

You use these sensors for industrial applications in measuring liquid levels of conductive media.

Such media includes water in boilers, reagents and very corrosive substances.

The sensors employ probes to decipher the media conductivity consisting an electrode pair accepting AC input.

One of the probes is long and the other short with the former outputting low voltage.

You have the switch on the shorter probe that activates when current flows though the probes immersed in the liquid media.

The current flow signifies the level of fluid media and provides a safe measure due to the low values.

Conductive levels sensors are cost effective solid state devices lacking movable parts and simple to use.

However, you only use them for conductive fluids while needing direct contact with the measured media making them liable to corrosion.

Capacitance Level Sensors

With this sensor type, you find a probe useful in the determination of the water level.

The changes in the water level deciphered into signals of analog property finding use in water treatment and food plants.

The probes in capacitance level sensors consist of wires insulated by polytetrafluoroethylene.

However, you can find probes furnished from stainless steel which provides better responsiveness when taking measurements.

Using a capacitance level sensor is simple and non-invasive and their solid state composition means a lack of moving parts.

Nonetheless, you have limited use of these sensors in terms of compatible liquid types while also requiring calibration.

Vibrating (Tuning Fork) Sensor

You suitably employ the vibrating sensor in detection of overfills or where running out of fluid media is undesirable.

The vibrating sensor employs a sensing element in the shape of a fork hence the name tuning fork.

The tuning fork energizes by piezoelectric means causing mechanical vibration at a frequency of about 1200 hertz.

You find this frequency changes when you bring the fork in contact with a liquid or fluid.

An oscillator picks the change in frequency after which it converts it into a digital signal for output.

While the vibrating sensor is invasive, it is a cost effective solution that is simple to use and maintain.

You can employ the tuning fork sensor to detect leaks and excess filling for a wide range of substances.

Industries such as mining, beverage and chemical processing employ vibrating sensors for level control.

Sensores de Nível Ultrassônico

You use ultrasonic level sensors in the determination of a materials’ bulkiness and liquid levels especially those of a sticky nature.

This sensor type determines the liquid levels by reflecting audio waves on the liquid surface.

The sensors then determine the level by decoding the strength of the signal and the duration of travel.

A transducer is handy when deciphering, however, response is subject to different atmospheric elements such as pressure, temperature, humidity and turbulence.

Ultrasonic level sensors consist of solid state material and their indifference to the properties of measured liquid make them highly reliable.

Nevertheless, these sensors are expensive and subject to certain environmental elements such as temperature, pressure and moisture.

Microwave/Radar Sensors

While there is some similarity of these sensors with the ultrasonic level sensors, they differ in certain aspects. With this sensor, you find the reflected waveforms travel at light speed but subject to the fluid’s dielectric properties.

The microwaves are sent to the radar via an antenna before reflection back. You note the duration of signal transmission is proportional to the fluid level.

Using a microwave/radar sensor ca afford you increased accuracy of level data since it is impervious to environmental elements.

Furthermore, using this sensor type is suitable for a wide range of substances including water and with no need for calibration.

Additionally, the sensor does not have to be in contact with the measured fluid. Consequently, you can employ the microwave/radar sensor in determining water levels in treatment plants.

However, you find these sensors have premium prices while they allow you only a certain range of performance.

Use of the microwave/radar sensors is common where you have liquid media in the presence of many environment elements.

How Many Pins Does Water Sensor PCB Have?

Water sensor PCB

Water level sensor PCB

A water sensor PCB has three connecting pins for its operation. These pins include:

  • The S (Signal) pin which is an output pin carrying analog signals that you connect to an analog input.
  • + (VCC) is a pin providing supply power for your sensor typically between three and five volts.
  • – (GND) pin is for the earthing or ground connection.

What Are The Applications Of Water Sensor PCB?

Water sensor PCBs find use across various industries in the determination of fluid levels and leakages. Common applications include:

  • Detection of water levels in tanks used for storage or transport.
  • Determining water levels in tanks during waste water treatment.
  • You find water sensor PCBs employed in automobiles for determination of fuel and cooling water levels.
  • Heavy industries such as paper and pulp plants employ water sensor PCBs.
  • Power generating plants employ water sensor PCBs to determine water levels in dams for instance.
  • You employ water sensor PCBs in the precise control of water levels across various applications.
  • You can monitor the surface water of an open channel flow such as river or ocean using water sensor PCBs.
  • Water sensor PCBs are also helpful in monitoring the ocean waves, tides and sea levels.
  • Vessels such as submarines utilize water sensor PCBs in determining depths.
  • Irrigation systems such as rice schemes employ water sensor PCBs in water flow management.

Can You Adjust The Sensitivity Of Water Sensor PCB Device?

Sim, você pode.

Sometimes the water sensor PCB can initiate an alarm even in the absence of water presence.

You find this can result from damp dirt close to the sensors or proximity to humidifying air conditioners.

Furthermore, a damp mound can coalesce resulting from concrete or spillage of contaminants.

Consequently, you need to adjust the sensitivity of the water sensor PCB to deter false alarms.

You can adjust the sensitivity of our water sensor PCB by furnishing an adjustment zone with your sensor.

Additionally, calibrating your water sensor PCB allows you to adjust your sensitivity upwards or downwards depending on immediate needs.

How Do You Layout Water Sensor PCB?

Making the layout of your water sensor PCB will require the use of a programming software such as EAGLE.

When using EAGLE, design consists of two steps involving the schematic design before using the schematic to develop a lay out.

The following steps are useful in laying out a water sensor PCB:

  1. First, you create a new project by navigating the control panel of the software and saving it in desired file name.
  2. You then commence the process of design by creating a schematic. In designing a schematic, you undertake two steps: add the required parts of the schematic and connecting these parts.
  3. When adding parts to the schematic, you add a frame and save the file. Thereafter, you add the power input, microprocessor and supporting circuitry and finally the connectors, saving after each progression.

What Is The Cost Of Designing And Manufacturing Water Sensor PCB?

The cost of designing and manufacturing a water sensor PCB varies with costs ranging from tens of dollars to thousands. Water sensor PCBs have a wide range of usage for small home applications to large industrial uses.

You find home applications of water sensor PCBs such as float switch sensors can cost less than ten dollars. However, industrial use of water level sensors such as microwave/ radar sensor are expensive costing thousands of dollars.

Is Water Sensor PCB Arduino Compatible?

A water sensor PCB is compatible with Arduino where you can connect to the input pins carrying digi5al signals. Alternatively, you can employ the Arduino’s analog pins by creating contact with the sensor traces and ground to determine water contact.

You can use Arduino with a three pin sensor constituting signal input, power supply and ground. You connect the power pin with the voltage input of the Arduino and the ground pin to that of the Arduino’s.

Contrarily, you connect the signal pin to the Arduino’s analog pin for decoding the signal inputted as an analogue voltage. The voltage is typically proportional to the liquid media in contact with the sensor.

Water sensor PCB

Water sensor PCB

What Is The Recommended Power Supply Of Water Sensor PCB?

The power supply of a water sensor PCB allows current flow through the circuit enabling the sensor to function.

Also, the recommended power supply of a water sensor PCB is a battery source. The battery typically has a rating of 3 – 5 V and an output of 1500 mA.

Which Are The Technical Specifications Of Water Sensor PCB To Consider When Placing An Order?

When ordering a water sensor PCB you need to consider the following technical specifications:

  • Operating humidity of the water sensor PCB, usually between 35-65%.
  • Sensor PCB’s operating and storage temperature range.
  • Power needs of the water sensor PCB provided as voltage and current values, with low power consumption desired.
  • A water proof enclosure to prevent entry of water into the device.
  • Operating distance for the sensor PCB.
  • Communication interface with both analog and digital options available.
  • Water sensor PCB’s sensitivity and Arduino compatibility.

Why Is It Important To Have A Good Return Current Path In Water Sensor PCB?

The water sensor PCB has active components requiring connection to the power and ground planes.

You need to carefully design the power and ground planes to allow the water sensor PCB components to connect with.

The planes provide a path for return signals during the routing process of the water sensor PCB.

Having impediments to the planes such as drilled holes or splits interferes with the return current path.

Consequently, you experience interference such as noise generation and performance instability of your water sensor PCB.

Having a good return current path prevents the occurrence of such interference.

What Are The Quality Certifications For Water Sensor PCB?

Some of the quality certifications for a water sensor PCB include:

BS EN 61000-6-3: 2007

This is a generic standard determining the electromagnetic compatibility (EMC) of PCBs such as the water sensor PCB.

It includes sensor types used for home-based and industrial applications.

BS EN 60359 2002 And IEC 60359:2001

Both these standards provide guidelines for electrical and electronic measurement equipment such as water sensor PCBs.

BS EN ISO/IEC 17025:2005

The certification provides for the general requirements for the testing competence of calibrated water sensor PCBs.

BS EN 60529: 1992

Water sensor PCBs furnished in enclosures are covered by this certification.

IEC 60068-2-78: 2001

You have the environmental test methods for water sensor PCBs provided testing sensor’s steady state and damp heat.

BS EN 27888:1993 And ISO 7888:1985

You find this certification specific to water sensor PCBs measuring conductive media such as the conductive level sensors.

Do You Supply OEM Water Sensor PCB?

Liquid level sensor PCB

Liquid level sensor PCB

An Original Equipment Manufacturer makes and sells products or parts to another manufacturer or seller. The recipient can employ the product as an assembly of another product or deliver to market as is.

In making water sensor PCBs, you can have OEM separately furnish parts of the sensor such as power supply. Furthermore, where you have movable parts such as in a float switch sensor, you can involve OEM.

Which Are The Common Errors Detected During Design Rule Check Of Water Sensor PCB?

A design rule check ensures your board features and characteristics are in tandem with the schematics.

During board design, you can have errors highlighted by carrying out a design rule check preventing costly rework.

Erros comuns incluem:

  • Drilling holes close to copper features.
  • Having annular rings with unacceptable characteristics.
  • Signal deficiencies concerning trace width, clearance and spacing.
  • Misplacement of solder masks.
  • Incorrect silkscreen positioning.

Why Should You Add Copper Pours To Water Sensor PCB?

A copper pour is an expanse on a water sensor PCB that you fill with copper that can serve different roles.

You can use your copper pour as a grounding point, a reference point or point of isolation for specific circuit elements.

Having a copper pour on your water sensor PCB can serve as a ground for the device or to help in eliminating heat.

Which Water Sensor PCB Gerber Files Should You Send To Your PCB Fabricator?

Gerber files are an industry standard file extension used in PCB design describing aspects such as silkscreen and copper trace.

You send the following Gerber files to your PCB fabricator when designing a water sensor PCB:

  • Top Copper with the GTL file extension
  • Bottom Copper with the GBL file extension
  • Top Solder mask with the GTS file extension
  • Bottom Solder mask with the GBS file extension
  • Top Silkscreen with the GTO file extension
  • Bottom Silkscreen with the GBO file extension
  • Drill File with the TXT file extension

What Is The Recommended Route Clearance For Water Sensor PCB Signal Traces?

When furnishing the signal traces for the water sensor PCB, route clearance is important to reduce crosstalk.

Consequently, you need to provide route clearance between traces amounting to at least four times the trace width.

At Venture Electronics, we design and manufacture a range of water sensor PCBs depending on your specifications.

Fale conosco hoje mesmo for all your water sensor PCB requirements.

Voltar ao Topo