Liquid Level Sensors of 2025
Best Choice1
Clicked 1 times in the last monthWalfrontWater Level Sensor Transmitter Ultrasonic Water Liquid Depth Level Meter Sensor with Temperature Digital Display Multi Function Indoor
Main highlights- This meter monitors liquid depth level, and displays on a 10 LCD bar graph.
- The receiver can be put standing on desk or hanging on wall.
- Supports liquid level high/low alarm and liquid empty alert.
- It can keep records of liquid level.Water Level Measure Rang: 0~15m. Resolution: 0.01m. Accurate: +/-0.03M.
- Displays indoor temperature (℉ or ℃) and temperature (℉ or ℃) at the same time.Indoor Temperature Range: 0~50℃. Outdoor Temperature Range: -40~60℃.
9.7Exceptional
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Value for Money2
EPTTECHEPTTECH Smart TLC2206 WiFi Water Oil Fuel Liquid Tank Level Monitor Indicator Controller Remote Water Level Sensor TUYA Intelligent Liquid Level Detector
8.4 Precision8.2 worth the money8.0 Easy installationWhy we love it
Easy smartphone monitoring from anywhere.
Simple installation process.
Accurate and reliable level detection.
9.5Excellent
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3
EPTTECHFood Grade Optical Infrared Water Liquid Level Sensor 500mm Cable High Sensibility, Working with Liquid Level Controller(Pack of 3)
Main highlights- They have no moving parts and are ideal for point level sensing of water and other liquids.
- They are suitable for high, low or intermediate level detection in practically any tank, large or small.
- The sensor offers ±1 mm accuracy and broad liquid compatibility.
- Installation is simple and quick through the tank top, bottom or side.
- 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.
9.4Excellent
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4
CQRobotCQRobot Non-Contact Water/Liquid Level Sensor Compatible with Arduino, Raspberry Pi and Other Motherboards. for Industrial Production, Aquarium, Chemical Solution, Agriculture, Gardening, etc.
Main highlights- 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.
- 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.
- 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.
- 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.
9.3Excellent
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5
JectseSubmersible Level Sensor 4-20mA, Throw-In Type Liquid Level Sensor,24V DC Input Liquid Level Transmitter,0-5M Measuring Range
Main highlights- 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
- 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
- Detecting Range: The liquid level sensor is suitable for detecting 0-5m range liquid level
9.1Excellent
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6
JectseDC0-110V Liquid Water Level Sensor, Sensor Switch, Male Thread 1/2 NPT 304 Stainless Steel, Suitable for Liquids of Different densities, pressures and temperatures
Main highlights- 【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, etc.
- 【QUALITY SUPPORT】A wonderful choice for you. If you have any questions with your stainless steel switch for , please us, we will you within 24 hours and provide a complete solution.
- 【PROFESSIONAL】Working Voltage: DC0-110V; Working Current: 0-1A; Working Pressure: 0.2Mpa; Maximum Withstand Voltage: 0.2Mpa; Medium Specific : 0.7; Maximum Temperature : 150℃.
- 【PREMIUM QUALITY】This switch for water is made of high quality stainless steel material, which is rustproof, wear resistant, high temperature It can be used in weak and alkali places.
- 【NORMAL OPEN OR CLOSE】The male thread size of this liquid switch is 1/2NPT. Normally open or normally closed can be adjusted according to your needs. It can do multi-point control, the control switch can be fixed with the liquid level position.
9.0Excellent
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7
FafeicyYB‑2J‑F Liquid Level Transmitter 5m Cable Water Level Sensor Detector 12‑32VDC 4‑20mA 304 Stainless Steel Liquid Level Sensor (0‑)
Main highlights- and . I water level sensor detector adopts P68 multi-layer to ensure use and long service life.
- The Probe is Detachable. The liquid level transmitter adopts a 45-degree oblique angle to prevent impact, and the probe is detachable and anti-blocking design.
- The Measurement is Accurate. Input the liquid level transmitter and high-precision diffused silicon to monitor the water level more accurately.
- Test Range. The measured medium of the liquid level transmitter is water. Do not test liquids that will corrode stainless steel.
- All Digital Conditioning Circuit. The water level sensor is a fully digital conditioning circuit, 4-20mA output, more
8.9Very Good
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8
StropumStropum 110V Automatic Water Level Controller,Small Water Level Sensor,Liquid Switch,Auto Water Level Detector,for Pump,Aquarium Fish Tank,0~100W Device,5 FT Cord
Main highlights- The Delayed Shutdown Function:It could keep the device working for several seconds, effectively reducing the sensor's false touch caused by water flow fluctuations.
- Small Sensitive Sensor:The mini water level controller is easily adapted to tight spaces, hidden installation.It's suitable for small the fish tank, small pump, and alarm. (The device power is 0-100 watts)
- Precise Automatic Water Level Control:It adopts high-precision sensors to monitor water level changes in real time, and automatically start and stop the device, with an error of less than 5 mm.
- 2 Prong Plug:It‘s suitable for most small devices (0-100 watts), plug and play.
8.7Very Good
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9
Tangxi18% OffLiquid Level Sensor,DC24V 4 20mA Throw in Type Water Level Sensors, Anti Bending 0 5m Range Depth Input Liquid Level Transmitter,6m/19.7ft Input Liquid Level Transmitter
Main highlights- 5. If you do not understand or dissatisfied with this product after purchasing this product, please tell us immediately, we will do our best to answer you and bring you a good shopping experience
- 4. The product type is an input level transmitter, the measurement accuracy is 0.2, the measurement medium is water, the cable length is about 6m / 19.7ft, the measurement range is 0-5m / 0-197in, and the probe size is about 10 x 2.8 cm / 4.13 x 1.10 inches.
- 3. The shell is made of 316 stainless steel, sturdy and , with a waterproof cable, to use, 4-20mA output, and can be used with digital display, PLC, inverter, recorder and other instruments.
- 2. The liquid level sensor adopts anti- materials (the measuring tube is not anti-), which has excellent anti- performance and is . At the same time, it also adopts anti-clogging design, easy to clean, resistant to bending, high-quality sturdy structure, and high reliability.
- 1. Liquid level sensor is used to measure the water level in the range of 0-5m, 4-20mA output, can be used with digital display, PLC, frequency converter, recorder and other instruments.
8.5Good
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10
EARUMZDQ4-20MA Output Integral Level Transmitter Liquid Oil Water Level Sensor Probe 304 Stainless Steel with 0-5M Measure Range 6M Cable Detect Controller Float Switch for Pump DC10-30V Power Supply
Main highlights- 【healthy to Use】: The shell is made of 304 stainless steel and durable, and with waterproof cable, healthy to use.The liquid level sensor is suitable for detecting 0-5m range water level.
- 【Stable Design】: High quality solid structure, Anti-bending, high accuracy, high stability, anti-blocking hole design, easy to clean.
- 【Premium Quality】: This liquid level sensor adopts of anti-corrosion material, excellent anti-corrosion performance and durable.Anti blocking design, easy to clean.
- 【Fitment】:0-5M Measure Range+6M Cable, DC 10-30V Power Supply, 4-20mA transmission output, can be used with digital display, PLC, inverter, recorder and other instruments.
- 【Excellent Performance】: With reverse polarity and current limit protection, laser proof temperature compensation,programmable adjustment.
8.4Good
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