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

Liquid Level beeping Indicator for Blind or Visually impaired (Blue)

Simple to use liquid level indicator for blind, visually impaired or elderly.
Easy to attach to most glasses and cups to have audible indicator of liquid levels to prevent overspill.
Small and easy to store. Measures 1.5 x 2.5 inch.
Great gift for older mother, father, grandparents or friends.

No. 5

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.

No. 6

Stainless Steel Liquid Level Sensor, 1/2 NPT Male Thread Side Mount Horizontal Liquid Float Switch, DC 0-110V Water Level Sensor Switch for Aquariums Tank/Fish/Hydroponics Pool

Multi Point Control Capability: The Liquid Level Sensor Switch can do multi point control, to ensure that the liquid level is accurately monitored and fixed. It offers a and robust method of controlling the level of the liquid, making it ideal for a wide range of applications, from water dispensers to fuel.
High Accuracy and Reliability: The Water Level Switch is engineered with high accuracy and reliability, thereby ensuring easy installation and efficient operation. The switch is made with stainless steel material, which ensures it is strong, and resistant, and long lasting.
Wide Temperature Range: Designed to withstand high temperatures of up to 120℃, this Side Mounted Water Floating Sensor Switch is suitable for use in high temperature environments such as industrial facilities, solar energy systems, and bathroom equipment.
Easy to Operate and Install: The Solid Stainless Steel Sensor Switch is easy to operate and install, making it ideal for DIY enthusiasts, technicians, or anyone who wants to achieve liquid level control in a hassle- manner. It has a male thread size of 1/2NPT, suitable for various machine parts.
Wide Application: This switch normally closed open is suitable for liquids of different densities, pressures and temperatures. Ideal for water dispensers, water heaters, solar energy, air conditioners, humidifiers.

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

Taidacent Non Contact Liquid Level Sensor Contactless Water Tank Water Level Sensor for Tank Water Level Control with Low and High Level Output

The intelligent non-contact liquid level sensor uses advanced signal processing technology and high-speed signal processing chip to break through the influence of the wall thickness of the container and realize the true non-contact detection of the liquid level in the closed container.
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.
High and low level output: If there is induction, the output is high level; no induction, the output is low level. Specially designed for non-metallic pipe liquid level detection
You can adjust sensitivity: Remove the plastic cover of the sensors and turn the very small screw, clockwise decrease sensitivity, counter clockwise to increase the sensitivity.

No. 9

Taidacent Non-Contact Liquid Level Sensor Externally Attached Liquid Induction Level Switch Water Level Switch (NPN Output(5-12V))

The intelligent non-contact liquid level sensor uses advanced signal processing technology and high-speed signal processing chip to break through the influence of the wall thickness of the container and realize the true non-contact detection of the liquid level in the closed container.
The liquid level sensor has intelligent liquid level reference adjustment and liquid level memory function, liquid level status display mode, which can realize multi-point series connection; can support high and low level output, NPN, PNP signal output and RS485 communication interface output ;Open collector output mode, wide voltage range (5~24V), suitable for connecting various circuits and product applications(Please Choose the appropriate model for your usage).
High stability, high sensitivity, strong interference capability, free from external electromagnetic interference, special treatment for power frequency interference and common mode interference, to be compatible with all 5~24V power adapters on the market.
Strong compatibility, through a variety of non-metallic containers, such as plastic, glass, ceramics and other containers, the sensing distance can reach 20mm; liquid, powder, particles can be detected.
Open collector output mode, wide voltage range (5~24V), suitable for connecting various circuits and product applications.

No. 10

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

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Last update on 2025-04-16 / Affiliate links / Images from Amazon Product Advertising API

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