Product Description

3.35V Digital Barometric Pressure Sensor Module 040KPa

Name: 3.3-5V Digital Barometric Pressure Sensor Module Liquid Water Level Controller Board 0-40KPa Connect 2.5mm Soft Tube For Arduino
Brand: HIMASTORES
SKU: HMJ736
Price: 1,300.00 KES
Availability: OutOfStock

Precision Liquid Level & Pressure Sensor for Arduino

The 3.35V Digital Barometric Pressure Sensor Module is a compact, highaccuracy sensor designed for liquid level measurement and air pressure monitoring. With a 0-40KPa measurement range and 2.5mm soft tube connection, this sensor provides reliable digital output for water level control, tank monitoring, and pneumatic systems.

Measures liquid level and air pressure with 0-40KPa range

Includes 2.5mm soft tube connection for easy installation

For noncorrosive media only air and fresh water

Technical Specifications

Parameter	Value
Supply Voltage	3.3V - 5V DC
Pressure Range	0 - 40KPa
Output Signal	Analog Voltage
Interface	2.5mm Soft Tube
Board Dimensions	~35mm x 22mm
Mounting Holes	2 x 2.5mm
Compatibility	Arduino, ESP32, 5V/3.3V MCU

= Key Features =

Direct Liquid Level Monitoring - Measures water level via air pressure

Analog Output - Simple connection to any ADC pin

Wide Power Range - Works with 3.3V and 5V systems

2.5mm Tube Connection - Easy installation with standard tubing

Compact Design - Small form factor for any project

Low Cost - Affordable liquid level solution

= Applications =

Water tank level monitoring
Fish tank and aquarium water level control
Irrigation system monitoring
Pump control systems
Air pressure measurement
Pneumatic systems
Laboratory equipment

Wiring Guide

Sensor Pin	Arduino Pin
VCC	3.3V or 5V
GND	GND
OUT	Analog Pin (A0)

> Connect 2.5mm soft tube to sensor inlet for pressure measurement

## Arduino Test Code

int sensorPin = A0;

int sensorValue = 0;

void setup() {

Serial.begin(9600);

}

void loop() {

sensorValue = analogRead(sensorPin);

float voltage = sensorValue * (5.0 / 1023.0);

float pressure = (voltage - 0.5) / 4.5 * 40;

Serial.print("Pressure: ");

Serial.print(pressure);

Serial.println(" KPa");

delay(500);

}

Pressure to Water Level Conversion

Pressure (KPa)	Water Level (cm)	Water Level (m)
10 KPa	102 cm	1.02 m
20 KPa	204 cm	2.04 m
30 KPa	306 cm	3.06 m
40 KPa	408 cm	4.08 m

> 1 KPa ≈ 10.2 cm of water

Calibrate sensor output for specific installation

## Why Choose This Sensor?

Direct liquid level measurement

Simple analog output

Easy tube connection

3.3V and 5V compatible

Reliable and accurate

Cost-effective solution

√ Works with Arduino and ESP32

√ No additional components required

√ Ready to connect

√ Suitable for water level control

√ Complete liquid level monitoring solution

## Safety Precautions

For non-corrosive media only

Do not exceed 40KPa

Keep away from extreme temperatures

Do not submerge sensor

Protect from physical damage

The 3.3-5V Digital Barometric Pressure Sensor Module provides accurate liquid level monitoring at an affordable price. Simple to install and easy to use, it's the perfect solution for water tank monitoring and pressure measurement projects.

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