Liquid Level Sensors of 2025
Best Choice1
WWZMDiBWWZMDiB 12 Pcs Water Level Sensor for Arduino DIY, Compatible with Arduino, Electronic Component, Liquid Level Sensor
Main highlights- Working voltage: DC 3-5V
- Water Level Sensor: Determine water level by measuring the volume of a drop/water with a series of exposed parallel wires
- 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
9.8Exceptional
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Value for Money2
Luubom12% OffLong-Range Wireless Automatic Water Level Controller –Automatic Water Filling | Digital Water Level Display | Prevents Motor Dry Run | Solar-Powered Liquid Level Sensor for Tank, Well or Cistern
Main highlights- Wide Compatibility: The automatic water level control system is used to regulate the water level of storage containers such as swimming pools, water tanks, and water towers. Antenna line length 2.9m; Sensor wire length 1.8m.
- This system consists of a water level sensor and a controller. The water level sensor is installed on the outdoor water storage container to detect the water level, and the controller is installed indoors to control the opening and closing of the water pump,replaces water pump pressure controller,supports remote control up to 3km;
- Technical Parameters: Working voltage: AC 75V-400V; Working distance: 500m-3km (open area); Control current: ≤40A; Working temperature: -20°C-70°C; Load power: ≤5kw; Communication method: LORA 433.92Mhz; Product size: Controller 90x83x50mm, Transmitter 98x47x68mm.
- Multi-Functionality: 1.water level display;2. Automatic water filling; 3. Timing water supply; 4. Dry running protection; 5. Manual function water filling instructions; 6. Communication protection; 7. Sensor error alarm; 8. Battery low battery alarm; 9.Solar Powered Auto-Charging.
- It Can Help You: 1. Automatically start water filling to avoid discovering water shortage in the storage container when water is needed; 2. Automatically stop water filling to avoid wasting water resources due to forgetting to turn off the water pump; 3. To avoid damage to the water pump caused by prolonged working time of the water pump; 4. Remote wireless detection and display of water level in water storage containers;
- Expandable Sensor Range: We offer sensor extension cables (sold separately) to customize the detection length for deep tanks or unique installations, Search 'Luubom Extension Cable' on Amazon to expand sensor range
9.6Exceptional
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3
MORAYELECMoray ME201R Tuya Smart Life APP IP65 Wireless WiFi Ultrasonic LED Temperature Indicator Time Fuel Display Wireless Water Tank Level Sensor Gauge Liquid Level Controller
Main highlights- WIFI:Between Gateway and router(max 50m no obstacle) RF433MHz:Between sensor and Gateway (max 500m no obstacle)
- SAFETY AND HIGH RELIABILITY:IP65 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.
- POWER ADAPTER: Input: 100-240V AC Output: 5V DC.
- OPERATING TEMPERATURE RANGE-10℃~+70℃: suitable for most weather conditions.
- MULTI TANK MORNITORING:One app can monitor as many as 10 sensors.You can connect multi tanks easily
- LONG MEASURING DISTANCE: 10cm to 4m(4 to 157 inches) from the sensor, which is suitable for different tanks.
- FULL AND LOW LEVEL ALERTS: You will receive message alerts when it is full or low level. Or set the alarm level by app
- EASY TO INSTALL:There is a nut to install the sensor.Install the sensor on top of the tank.
- 1 YEARS WARRANTY:MORAY ELEC 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
mxuteukmxuteuk 2 Pcs Side Mounted Horizontal Liquid Float Switch Water Level Sensor Black for Aquariums Tank DPL-1-BK
Main highlights- 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.
- Product Name: Water Level Sensor ; Float Ball Material: PP ; Color : Black ; Temperature Rating: -30~125 degree Centigrade ; Switch Forms:N.O /N.C.
- Package Content : 2 Pcs x Float Switch
- Max Contact: Rating 10W ; Max Switching Voltage: 100V DC ; Max Switching Current: 0.5A ； Max Contact Resistance : 100m ohm
9.1Excellent
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6
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.
8.9Very Good
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7
TaidacentTaidacent Non Contact Liquid Level Sensor Contactless Water Level Sensor Externally Attached Pipe Water Float Switch NPN Output Capacitive
Main highlights- 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.
- 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 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.
- NPN output: If there is induction, the output is low level; no induction, disconnected
8.8Very Good
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8
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
8.6Very Good
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9
TangxiLiquid 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.
8.4Good
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10
CirbicLiquid Level beeping Indicator for Blind or Visually impaired (Blue)
Why we love it
Simple to use for everyone.
Prevents messy spills effectively.
Compact and easy to store.
8.2Good
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