Capacitive Level Sensors

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Capacitive Oil Level Sensor, 0-1000mm

SISCO-CLS-BRW700

SISCO capacitive oil level sensor provides precise oil level detection with accuracy up to ±0.5%FS. Supporting 9–30VDC power input. Designed with an IP65-rated housing, it offers excellent protection against dust and water while maintaining reliable performance under vibration and temperature changes.

$466.00

Wireless Capacitive Level Sensor for Fuel, Bluetooth

SISCO-CLS-CPM212

Wireless capacitive level sensor is designed for accurate and reliable fuel level monitoring without complex wiring installation. Using capacitive sensing technology, it provides high measurement accuracy up to 99.50% with 0.1 mm resolution for precise fuel level detection. Featuring a long battery life of up to 6 years, IP69 waterproof protection, and a wide temperature sensing range from -40°C to +120°C.

$197.85

Contact Capacitance Liquid Level Sensor

SISCO-CLS-FKY12-NP-FL

The contact capacitance liquid level sensor provides accurate and responsive liquid level detection using capacitive sensing technology. It features adjustable sensitivity, 12-24VDC power supply, 20ms response time, and less than 0.5W power consumption. Designed for industrial automation, offering a reliable solution for liquid monitoring and control applications.

$126.92

Digital Capacitive Water Level Sensor, NPN+PNP

SISCO-CLS-FKG24

Digital capacitive water level sensor is a non-contact sensing device that detects liquid level changes through capacitance variation. This capacitive water level sensor offers reliable repeat detection with less than 5% sensing distance deviation and is designed for stable operation in industrial environments. The ABS housing, IP66 protection, and electrical protection functions make it suitable for automatic water level monitoring and liquid control systems.

$126.92

Capacitive Level Transmitter for Liquid, IP67

SISCO-CLS-CE15

Capacitive level transmitter is designed for reliable pipeline liquid detection with non-flush mounting. Supporting 12-26 mm pipe sizes, the capacitive level sensor provides stable sensing performance with PNP and NPN output options. Featuring IP67 protection and a durable PBT housing, it ensures reliable operation in demanding environments and is suitable for liquid monitoring and automatic control systems.

$180.67

Capacitive Liquid Level Sensor, NPN/PNP

SISCO-CLS-CE10

The capacitive liquid level sensor is a sensor used to detect liquid levels through pipeline walls. It supports adjustable pipe mounting from 8–11 mm with a maximum wall thickness of 1.0 mm. With a 60Hz switching frequency, ≤±20% switch-point drift, and ≤200 mA load capability.

$179.12

Capacitive Fuel Level Sensor, 100-1400mm

SISCO-CLS-GLTV7S

The capacitive fuel level sensor provides accurate level measurement with an optional measuring range of 100–1400mm. Featuring 0.01mm resolution and measurement accuracy of ±1% or 0.5%, it delivers reliable liquid level detection for various industrial applications. Supporting 5V and 9–36VDC power supplies.

$194.31

Capacitive Tank Level Sensor, 0-2000mm

SISCO-CLS-BRW700-201

The capacitive tank level sensor delivers high measurement accuracy of up to ±0.5% FS with excellent long-term stability of ±0.1% FS over one year. Designed with low temperature drift and a 316 stainless steel probe, it ensures reliable liquid level detection in harsh industrial environments. With a temperature resistance range of -50℃ to +200℃ and IP65 protection, it is suitable for demanding tank level monitoring applications.

$470.69

Capacitive Level Sensor for Corrosive/High-temperature Liquids

SISCO-CLS-TY300DR

Our capacitive level sensor for corrosive/high-temperature liquids supports a measuring range from 1 mm to 1500 mm with high-precision performance at 0.5% FS. It can endure working pressure from 0 MPa up to 30 MPa to fit demanding industrial level monitoring. Weighing only 300 g, this sensor features IP67 housing protection grade, making it well-suited for dusty, wet field environments when measuring corrosive and high-temperature liquids.

$384.12

Non Contact Capacitive Liquid Level Sensor for Pipeline Level

SISCO-CLS-CE30-26

Non-contact capacitive liquid level sensor is designed for pipeline liquid detection without direct contact with the measured medium. It features a 14–26 mm adjustable sensing range, dielectric detection principle, NPN/PNP output options, IP67 protection, and low power consumption. The compact pipe mount design makes it ideal for water, chemical, and industrial liquid monitoring applications.

$121.38

Capacitive level sensors are used for liquid level detection and monitoring by measuring changes in electrical capacitance. Unlike mechanical level switches, capacitive sensors have no moving parts and provide fast, reliable level detection with easy installation. They are commonly used in storage tanks, pipelines, industrial automation systems, and process control equipment.

Key Features and Benefits of Capacitive Level Sensors

Non-Contact Level Detection

Many capacitive level sensors can detect liquid levels through plastic or glass container walls without contacting the medium.

Benefits:

Prevents contamination
Reduces maintenance
Simplifies installation

No Moving Parts for Long-Term Reliability

Unlike float level switches, capacitive sensors use electronic detection technology without mechanical components.

Benefits:

Longer service life
Less maintenance
Better resistance to vibration

Adjustable Sensitivity: Many models support sensitivity adjustment, allowing users to optimize detection performance for different liquids and container materials.

Fast Response Time: Capacitive sensors provide quick detection and are suitable for automatic control applications requiring rapid response.

Compact Installation: The small size allows installation in limited spaces, making them suitable for equipment, pipes, and compact tanks.

Wide Material Compatibility

Capacitive level sensors can detect:

Water
Oil
Fuel
Chemicals
Powders
Granular materials

How to Choose a Capacitive Level Sensor?

Choosing the right capacitive level sensor depends on the application, measured material, installation method, and required output signal. To select the best sensor, consider the following factors:

Measurement Purpose: Choose a capacitive level switch for high/low level detection or a capacitive level transmitter for continuous level monitoring.
Material Compatibility: Select a suitable sensor for the medium, such as water, oil, fuel, chemicals, or solid materials.
Detection Method: Use a non-contact capacitive level sensor for plastic or glass tanks, or a contact sensor for direct liquid detection.
Output Signal: Select NPN/PNP for PLC control, 4-20mA for industrial monitoring, or RS485 for remote communication.
Installation Environment: Check tank material, detection range, operating temperature, and IP protection requirements.

For reliable liquid level detection in industrial and automation applications, choose a capacitive level sensor that matches your medium, control system, and installation conditions.

Capacitive Level Sensors Comparison Table

Model	Application	Measuring Range	Output / Communication	Key Features
SISCO-CLS-BRW700	Oil tank, fuel monitoring, industrial liquid tanks	0–1000mm	4-20mA / 0-5V DC / 0-10V DC / MODBUS	Designed for oil level measurement with stable capacitive detection and reliable long-term operation
SISCO-CLS-CPM212	Fuel tanks, remote fuel monitoring systems	Max 100m	Bluetooth communication	Wireless capacitive fuel level monitoring with convenient data transmission and easy installation
SISCO-CLS-FKY12-NP-FL	Industrial liquid detection, tank level control	Contact Detection	NPN + PNP output	Direct liquid contact measurement with adjustable sensitivity for different liquids
SISCO-CLS-FKG24	Water tanks, pipelines, automation equipment	PipelinΦ6-13mm/Φ13-26mm	NPN + PNP output	Digital liquid detection with dual output options and easy PLC integration
SISCO-CLS-CE15	Industrial liquid level monitoring	PipelinΦ12-26mm	NPN / PNP output	IP67 protection with stable continuous liquid level measurement for industrial environments
SISCO-CLS-CE10	Industrial automation, liquid presence detection	PipelineΦ8-11 mm	NPN / PNP output	Flexible switching output design for automatic control systems
SISCO-CLS-GLTV7S	Vehicle fuel tanks, fuel storage systems	100–1400mm	4~20mA / 0~5V / RS485 / RS232	Suitable for fuel measurement with wide detection range and stable performance
SISCO-CLS-BRW700-201	Large tanks, storage vessels, industrial monitoring	0–2000mm	4-20mA / 0-5VDC / 0-10VDC	Extended measuring range for large-capacity tanks and liquid storage applications
SISCO-CLS-TY300DR	Chemical tanks, high-temperature process equipment	1–1500mm	4-20mA	Designed for harsh environments with corrosion resistance and high-temperature capability
SISCO-CLS-CE30-26	Plastic pipelines, water systems, sealed fluid systems	PipelineΦ14–26mm	NPN / PNP output	Detects liquid through non-metallic pipe walls without direct contact with liquid

Installation Tips for Capacitive Level Sensors

Choose the Correct Installation Position: Install the sensor where the liquid level changes can be detected clearly.
Avoid Strong Interference Sources: Keep sensors away from strong electromagnetic interference when possible.
Adjust Sensitivity Properly: Sensitivity adjustment helps optimize detection performance for different tank materials and liquids.
Confirm Container Material: Non-metallic containers such as plastic and glass are generally easier for capacitive detection.
Keep the Sensor Surface Clean: For contact sensors, regular cleaning helps maintain accurate detection.