The Best Liquid Level Sensors

Looking for the best Liquid Level Sensors?

Discover now our comparison of the best Liquid Level Sensors. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Liquid Level Sensors are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Liquid Level Sensors in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.

No. 1

Liquid Level Sensors

✅ SPST Liquid Level Switch Open On Rise 240VAC 50 psi
✅ Item: Liquid Level Switch
✅ Voltage: 240VAC
✅ Operating Temp. Range: 221 Degrees F Max
✅ Float Specific Gravity: 0.7

No. 2

CQRobot Non-Contact Water/Liquid Level Sensor Compatible with Arduino, Raspberry Pi and Other Motherboards. for Industrial Production, Aquarium, Chemical Solution, Agriculture, Gardening, etc.

The CQRobot non-contact liquid level sensor realizes non-contact detection of the liquid level in a closed container. It adopts advanced signal processing technology and high-speed signal processing chip, breaking through the influence of container wall thickness. It is simple to install and easy to use, and can detect the level of various toxic substances, strong acids, strong alkalis and various liquids in high-pressure airtight containers.
The principle is to use the inductive capacitance of water to detect whether there is liquid. When there is no liquid close to the sensor, the sensor has a certain static capacitance to the ground due to the existence of distributed capacitance on the sensor. When the liquid level slowly rises and approaches In the case of an inductor, the parasitic capacitance of the liquid will be coupled to this static capacitance, making the final capacitance value of the inductor larger.
The changed capacitance signal is then input to the control IC for signal conversion, which converts the changed capacitance into a change of a certain electrical signal, and then a certain algorithm is used to detect and judge the degree of this change. When the change exceeds a certain amount It is considered that the liquid level has reached the sensing point when the threshold is reached.
High stability, high sensitivity, strong interference ability, no external electromagnetic interference, special treatment for power frequency interference and common mode interference, strong compatibility, penetration of various non-metallic containers, such as plastic, glass, For ceramics and other containers, the sensing distance can reach more than 12mm; liquid, powder, and particulate matter can be detected.
The sensor comes with 2 DIP switches, the right DIP switch controls the output voltage (high level) of the signal terminal (green line); when the DIP switch is dialed up, the high level is 5V; when the DIP switch is facing When dialing down, the high level is 3.3V. Compatible with Arduino, Raspberry Pi and Other Motherboards.

No. 3

Food Grade Optical Infrared Water Liquid Level Sensor 500mm Cable High Sensibility, Working with Liquid Level Controller(Pack of 3)

They have no moving parts and are ideal for point level sensing of water and other liquids.
Installation is simple and quick through the tank top, bottom or side.
The sensor offers ±1 mm accuracy and broad liquid compatibility.
They are suitable for high, low or intermediate level detection in practically any tank, large or small.
Cable length 500mm.Input 5VDC,Analog output,XH2.5 connector
1 YEARS WARRANTY:EPTTECH has provided liquid detection solution for over 20 years.1 years gurranty for longterm service.

No. 4

WWZMDiB 12 Pcs Water Level Sensor for Arduino DIY, Compatible with Arduino, Electronic Component, Liquid Level Sensor

Water Level Sensor: Determine water level by measuring the volume of a drop/water with a series of exposed parallel wires
Working voltage: DC 3-5V
Operating current: less than 20mA
Commonly used in: HVAC, dehumidifiers, testing instruments, automobiles, automatic control, weather stations, humidity regulators and other related temperature detection and control

No. 5

Submersible Level Sensor 4-20mA, Throw-In Type Liquid Level Sensor,24V DC Input Liquid Level Transmitter,0-5M Measuring Range

Material : This level sensor adopts of anti- material, excellent anti- performance and ,The shell is made of stainless steel and , and with cable, to use
Features: Anti - bending, high - quality solid structure, high reliability,Anti - blocking design, easy to clean
Used: 4-20mA output, can be used with digital display, PLC, inverter, recorder and other instruments
Size: Probe size:10 x 2.8cm / 4.13 x 1.10in,Cable length: 6m/19.7ft
Detecting Range: The liquid level sensor is suitable for detecting 0-5m range liquid level

No. 6

Liquid Level Indicator- Two Sensors

Simple Placement: Easily attaches to the side of any cup or mug, offering a convenient way to track the liquid level.
Clear Visual Cue: The indicator alerts you as the liquid nears the top, helping you avoid spills and messes.
Compact and Portable: Small and lightweight, it can be used with various drinkware and is easy to carry around.
Easy to Use: No complicated setup—place the indicator on the side of your cup, and it works instantly. Perfect for Everyday Use: Ideal for coffee mugs, tea cups, water glasses, or any beverage container

No. 7

Taidacent Non Contact Liquid Level Sensor Contactless Water Level Sensor Externally Attached Pipe Water Float Switch NPN Output Capacitive

The intelligent non-contact liquid level sensor utilizes advanced signal processing technology and a high-speed signal processing chip to overcome the impact of container wall thickness, enabling accurate non-contact liquid level detection in sealed containers.
The liquid level sensor (probe) is installed above and below the outer wall of the container to be tested (the high and low positions of the liquid level). The non-metallic container does not need to be opened, and the installation is simple and does not affect the production.
The liquid level of various toxic substances, strong acids, strong alkalis and various liquids in the high-pressure closed container can be detected.
The liquid to be tested is required to be electrically conductive, the contact surface is non-metal, and the pipe is easy to install and can be widely used.
NPN output: If there is induction, the output is low level; no induction, disconnected

No. 8

Anndason 6 Pieces Plastic PP Float Switch Fish Tank Liquid Water Level Sensor,Model: DP5200

Package Content : 6 x Water Level Sensor ;Color :Light blue and yellow
Model No. : DP5200;Max Contact Rating : 10W
Max Switching Current : 0.5A;Max Breakdown Voltage : 220V DC;Max Carry Current : 1.0A;Max Contact Resistance : 100m ohm
Temperature Rating : -10 / +85 Celsuis;Float Ball Material : P.P;Float Body Material : P.P
Cable Length : 39cm / 15.3"；Switch Body Size : 65 x 22mm / 2.6" x0.87" Thread Dia(Approx) : 16mm / 0.63"

No. 9

mxuteuk 2 Pcs Side Mounted Horizontal Liquid Float Switch Water Level Sensor Black for Aquariums Tank DPL-1-BK

Product Name: Water Level Sensor ; Float Ball Material: PP ; Color : Black ; Temperature Rating: -30~125 degree Centigrade ; Switch Forms:N.O /N.C.
Max Contact: Rating 10W ; Max Switching Voltage: 100V DC ; Max Switching Current: 0.5A ； Max Contact Resistance : 100m ohm
Thread Dia(Approx): M16 mm ; Thread Dia(Approx) : 1.55cm / 0.61" ; Float Ball Size(Approx) : 2.3 x 1.7cm /0.9" x 0.67" (L*D) ; Total Length : 84mm / 3.31" ; Cable Length: 40cm/15.8"
The switch has the advantages of high sensitivity and durability. PP material is environmentally friendly and has excellent acid and alkali resistance.
Package Content : 2 Pcs x Float Switch

SaleNo. 10

EPTTECH Smart TLC2206 WiFi Water Oil Fuel Liquid Tank Level Monitor Indicator Controller Remote Water Level Sensor TUYA Intelligent Liquid Level Detector

LONG MEASURING DISTANCE: 10cm to 3.0m(4 to 118 inches) from the sensor, which is suitable for different tanks.
POWER ADAPTER: Input: 100-240V AC Output:9V DC.
WIFI SIGNAL:The sensor needs to connect to router to get wifi signal.Wifi range is 30m when no obstacle
SAFETY AND HIGH RELIABILITY:IP67 waterproof.CE,Rohs and Reach certification.
REMOTE OIL TANK MONITORING: Check your tank level from your smartphone – anytime, anywhere! No need to open the tank from time to time.
FULL AND LOW LEVEL ALERTS: You will receive message alerts when it is full or low level. Or set the alarm level by app
MULTI TANK MORNITORING:One app can monitor as many as 50 sensors.You can connect multi tanks easily
EASY TO INSTALL:There is a nut to install the sensor.Install the sensor on top of the tank.
OPERATING TEMPERATURE RANGE-10℃~+70℃: suitable for most weather conditions.

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Last update on 2025-07-05 / Affiliate links / Images from Amazon Product Advertising API

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