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Best liquid level sensors - Black Friday 2025

Last Updated - November 23, 2025

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

MORAYELEC

Moray Smart WiFi Water Level Sensor Water Tank Level Monitor Oil Tank Gauge Sensor Automatic Alarm Indicator for Tuya Smart Life Mobile APP with Gateway Smart Home Remote IP65 Waterproof (ME201R)

MORAYELEC

$65.99

More Details
Main highlights
- 【Stable 2.4G WiFi Connection】 Connects easily to your home WiFi network. 30m signal range (no obstacles). Compatible with Gateway Smart Home Remote/Tuya smart systems.
- 【Smart Remote Monitoring】 Check your water or oil tank level anytime via Tuya Smart Life APP. Supports multi-tank monitoring (up to 10 sensors) for full remote control.
- 【Smart Alerts & Easy Get full/low level notifications or set custom alarm limits. Simple top—Comes with all parts and mounts the sensor on the top of the tank.
- 【Long Range & High Accuracy】 Measures from 10cm–4m (4–157in) with precise ultrasonic detection. Perfect for which is suitable for different tanks.
- 【IP65 Waterproof】 Durable design with CE, RoHS, REACH certifications. -10℃ to +70℃: Suitable for most weather conditions. for long-lasting operation.
$65.99
2

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

EPTTECH

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

EPTTECH

$53.00

More Details
Main highlights
- 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.
- POWER ADAPTER: Input: 100-240V AC Output:9V DC.
- OPERATING TEMPERATURE RANGE-10℃~+70℃: suitable for most weather conditions.
- MULTI TANK MORNITORING:One app can monitor as many as 50 sensors.You can connect multi tanks easily
- LONG MEASURING DISTANCE: 10cm to 3.0m(4 to 118 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.
$53.00
3

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Cirbic

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

Cirbic

$17.49

More Details
Main highlights
- Small and easy to store. Measures 1.5 x 2.5 inch.
- Simple to use liquid level indicator for blind, visually impaired or elderly.
- Great gift for older mother, father, grandparents or friends.
- Easy to attach to most glasses and cups to have audible indicator of liquid levels to prevent overspill.
$17.49
4

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

CQRobot

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

CQRobot

$16.99

More Details
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.
$16.99
5
Best Value

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Yosoo Health Gear

Liquid Level Sensor Cable Submersible Transmitter Water Level Sensor Detector Cable, IP68 Liquid Level Transducer, 4-20mA Water Level Sensor Detector

Yosoo Health Gear

$29.60

$31.89
(7% Off)

More Details
Main highlights
- [Wide Temperature Range] The Liquid Level Sensor Cable can operate within a temperature range of -40-80℃, providing greater flexibility across various applications. Its temperature compensation feature ensures accurate and data, even in varying environmental conditions
- [Versatile Compatibility] Made from 304 stainless steel, this sensor cable can measure water levels accurately. It is not recommended to measure other liquids or liquids that can corrupt stainless steel. However, it is compatible with different power supply voltages and can support 12-32VDC
- [Sturdy and This Liquid Level Transducer Sensor Cable has multi layer IP68 , ensuring and long lasting use. Its 45 degree oblique angle anti impact and probe detachable anti blocking design make it even more and rugged
- [Accurate Detecting] The Liquid Level Sensor Cable features a high precision silicon diffusion input level transmitter that provides more accurate detecting and monitoring of water levels. This ensures greater reliability and optimal performance
- Equipped with a full digital conditioning circuit and 4-20mA output, this Submersible Transmitter Water Level Sensor Detector Cable promotes and more data. This feature is essential for various applications when accuracy is critical
$29.60
$31.89 (7% Off)

Best liquid level sensors - Black Friday 2025

Moray Smart WiFi Water Level Sensor Water Tank Level Monitor Oil Tank Gauge Sensor Automatic Alarm Indicator for Tuya Smart Life Mobile APP with Gateway Smart Home Remote IP65 Waterproof (ME201R)

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

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

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

Liquid Level Sensor Cable Submersible Transmitter Water Level Sensor Detector Cable, IP68 Liquid Level Transducer, 4-20mA Water Level Sensor Detector

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