Best Walfront Pressure Probes in 2026

Standard water well pump replacement switch designed for use of electrically driven water well pumps of all types (Jets, Submersible, Reciprocating etc)

Cut-In Pressure 40 PSI - Cut-Off Pressure 60 PSI - Adjustable

Large silver contacts for longer service life

Grounded thermocouple thermistor . The K thermocouple temperature sensor is waterproof . This is a water tight sensor probe

The K type temperature sensor probe temperature range is 0~500℃ ( 932 Fahrenheit ) . Accuracy : 0.2 .

This K temperature sensor is rustproof , it is made from stainless steel . Water proof Insulation Lead

100PSI PRESSURE TRANSDUCER - Convert the physical parameters of the gas , liquid and other physical parameters of the pressure sensor into a standard electrical signal.

WIDE APPLICATION - Plug and play for fuel, oil, air, water pressure inputs, can be used in oil tank, gas tank, etc.

PREMIUM MATERIAL - Made from top grade 316 stainless steel & high temperature resistant plastic, endure all kinds of working environment.

Not only the pressure and the temperature, this sensor can measure humidity.

Make sure to put SDO to high to get address 0x77. This will work with Adafruit BME280 library perfectly.

BME280 is a precision sensor, is soldered onto PCB. It uses both I2C and SPI (supports 3-, 4-wire SPI) interface.

It is an environmental sensor with temperature, barometric pressure that is the next generation upgrade to the BMP085/BMP180/BMP183.

The BMP280 is an absolute barometric pressure sensor especially designed for mobile.

This sensor is great for all sorts of weather sensing and can even be used in both I2C and SPI!

Price For: Each Manufacturer: Adafruit Product Category: Adafruit Accessories RoHS: Product: Sensors Type: Board Mount Humidity Sensors Brand: Adafruit Packaging: Bulk

FLEXIBLE FORCE SENSITIVE SENSOR OFFERS EXTREME SPEED RESPONSE--The flexible sensor has the characteristics of flexible ultra-thin, and extreme speed response, etc

WIDELY APPLICATIONS FOR VARIETY ITEMS' DETECTING--This Force Sensing Resistor has widely applications during daily life, such as off-bed monitoring, intelligent breathing belt, sleep monitoring, electronic shelf

DUAL WATER-PROOF AND PRESSURE SENSITIVE FSR SENSOR--Waterproof and pressure sensitive dual function

Tension and compression both can be used

High accuracy with good stability

Hermetically welded/sealed by adhesive inside

Flexible/Bend Sensor: The RP-C resistance type pressure sensor is a flexible thin film sensor whose resistance decreases along with the pressure increases

Variable Resistance: Single sensitive area pressure sensor is equivalent to a dual port variable resistance whose resistance is controlled by pressure, and to a switch of a certain threshold, the threshold is determined by pressure and equipment parameters setting

Quick Response: The pressure sensor supports static/dynamic pressure sensing, and has fast response speed

Pressure Switch - Water or Air

Pressure Switch used to control electrically driven motors

Diaphragm Actuated

BMP180 is a high-precision, small size, ultra-low power pressure sensor that can be used in mobile devices

Its performance excellence, the absolute accuracy of the lowest can reach 0.03hPa, and low power consumption, only 3μA

BMP180 powerful 8-pin ceramic leadless chip carrier (LCC) ultra-thin package, you can directly through the I2C bus connected with a variety of microprocessors

This Kit contains with 3pcs of digital sensor module, which can be independently enabled / disabled, which can measure not only the temperature humidity, but also the pressure.

The BME280 sensor is great for all sorts of weather sensing and can even be used in both I2C and SPI! For simple easy wiring, go with I2C. If you want to connect a bunch of sensors without worrying about I2C address collisions, go with SPI.

Our BME280 Sensor is the best low-cost, precision sensing solution for measuring barometric pressure with ±1 hPa absolute accuraccy, and temperature with ±1.0°C accuracy. Because pressure changes with altitude, and the pressure measurements are good, you can also use it as an altimeter with ±1 meter accuracy.

[PRE-SOLDERED]: Solderless! Pins already attached. Ready to plug in and go.

[COMPATIBILITY]: Perfect for all models of Raspberry Pi, Arduino, and various microcontrollers.

[ENVIRONMENTAL SENSOR]: Measures Pressure, Humidity, and Temperature with I2C and SPI Interfacing.

【350 Ohm】 A resistive strain gauge sensor with a 350 ohm nominal resistance which varies when a force is applied. By measuring the change in the sensors resistance, a measurement of the force applied to it can be obtained.

【Constantan Foil】The substrate is made of the modified phenolphthalein, and the grid is made of constantan foil.

【High Precision】With high precision and good static measurement stability, the weighing sensor is suitable for 0.02 level sensor.

[Full voltage protection]:With stainless steel body, provides complete surge voltage protection.

[Note]:0.5%FS small output error, including nonlinear, hysteresis error and repeatability.

[Stable and reliable]:This pressure transducer adopt preciseness compensation technology and sensitive components, stable and reliable.

Characterize surface pressure between any two mating, touching, or impacting surfaces. The dimensions of this film are 19.7 ft x 10.6 in (6m x 270mm).

Prescale provides a surface pressure “map” that illuminates actual pressure magnitude (in precise PSI or kg/cm^2) and distribution between your two surfaces. The pressure range of this film is 70 - 350 PSI (5 - 25 kg/cm²).

Prescale reveals the contact surface pressure by virtue of a color change. This color change is instantaneous (less than a millisecond) and permanent

EASY TO INSTALL: The pressure transducer sender has light weight and small dimension, convenient to install and operate

DURABLE: The thread pressure transducer has stainless steel body, with high quality ceramic pressure chip

HIGH SENSITIVITY: The air pressure transducer has ±2%FS small output error, full temperature range, high sensitivity and accuracy

Compatible with all Fluke and most popular digital multimeters

Digital pressure and vacuum measurements in a single module

Transducer sealed in 316 stainless steel compatible with variety of liquids and gases

Features: Uses I2C interface (Qwiic-enabled): I2C Addresses: 0x76 (Default) or 0x77, 2x Qwiic Connectors; Operating voltage range: 1.71V - 3.6V, Typically 3.3V if using the Qwiic cable; Typical current consumption (varies based on mode and active sensor): 2.1 µA to 18mA, 0.15 µA (sleep mode), 3.9 mA in standard gas scan mode

Relative humidity: Operating range: 0% to 100%, Absolute Accuracy: ±3%RH, Resolution: ±0.008%RH; Temperature: Operating range: -40°C to +85 °C, Absolute Accuracy: ±1.0°C, Resolution: 0.01°C

Pressure: Operating range: 300hPa - 1100hPa, Absolute accuracy: ±60Pa (0°C to 65°C), Resolution: 0.18PA, highest oversampling; Gas: F1 score for H₂S scanning: 0.92, Standard scan speed: 10.8 sec/scan, Sensor-to-sensor deviation: ± 15% ± 15

This module adopts high precision AD sampling chip and 0-40KPa air pressure sensor.

Adopts 5K ohm resistor bridge sensor.

Pressure: 0-40KPa., Voltage: 3.3-5V. The specific air pressure value needs to be calculated

FSR402 single-zone fore sensoring resistor with 0-10kg force measuring range

Force sensing resistor can sense applied force on sensing area in the range of 0g-10kg

Varies its resistance depending on how much pressure is being applied to the sensing area, the larger the force, the lower the resistance

Wireless Pressure Sensor

Use your Apple or Samsung device to measure pressure and temperature

Small size, easy to use, 100PSI, 300PSI, 1,000PSI, 5,000PSI, 10,000PSI also available

The BME280 sensor is great for all sorts of weather sensing and can even be used in both I2C and SPI! For simple easy wiring, go with I2C. If you want to connect a bunch of sensors without worrying about I2C address collisions, go with SPI.

Our BME280 Sensor is the best low-cost, precision sensing solution for measuring barometric pressure with ±1 hPa absolute accuraccy, and temperature with ±1.0°C accuracy. Because pressure changes with altitude, and the pressure measurements are good, you can also use it as an altimeter with ±1 meter accuracy.

Supply Voltage: 1.8 - 5V DC Interface: I2C (up to 3.4MHz), SPI (up to 10 MHz)

Temp Range: -40C to 85C - Humidity Range: 0 - 100% RH, =-3% from 20-80%

Pressure Range: 30,000Pa to 110,000Pa, relative accuracy of 12Pa, absolute accuracy of 100Pa

Altitude Range: 0 to 30,000 ft (9.2 km), relative accuracy of 3.3 ft (1 m) at sea level, 6.6 (2 m) at 30,000 ft.

4 in One: Light intensity + Temperature + Humidity + Atmospheric pressure module.

GY-39 is a light intensity temperature humidity atmospheric pressure sensor integrated module, direct serial output. Communication method: MCU_IIC/MCU_serial port/sensor chip IIC bus.

You can use the MCU on the module to read various data. After the MCU calculates, it outputs the calculated practical data directly. It supports serial port/i2c.

Multi‑purpose, the sensor can sense atmospheric pressure and temperature in many ways.

Made of synthetic cardboard material in high quality, the sensor keeps high reliability and excellent long;term stability.

And scope of work includes ;40 to +85°C temperature, and 1100 hPa pressure.

This flexible pressure sensor is based on new nanometer pressure-sensitive materials supplemented by ultra-thin film substrate

When sensor detects outside pressure, the resistance of sensor will change

It has pressure sensitive function as well as water-resistant function

Type: Intake Air Pressure Sensor

Made of premium material, which ensures the maximum durability.

Easy installation, a nice replacement for the old and broken one.

The BMP280 sensor is a precision sensor, is soldered onto PCB, measure the pressure and the temperature.

It is an environmental sensor with temperature, barometric pressure that is the next generation upgrade to the BMP085/BMP180/BMP183.

Temperature humidity module is great for all sorts of weather sensing and can even be used in both I2C and SPI.

Air pressure sensor module pressure: 0-40KPa; Voltage: 3.3-5V the specific air pressure value needs to be calculated; Voltage: 3.3-5V

This module adopts high precision AD sampling chip and 0-40KPa air pressure sensor, it can connect 2.5mm soft tube and detect the water level and other air pressure

Adopt 5K ohm resistor bridge sensor, and specific air pressure value needs calculating.