DFRobot
Non-contact Capacitive Liquid Level Sensor
A non-contact capacitive liquid level sensor that detects whether liquid is present inside a non-metallic container or pipe without direct contact with the f...
Get notified when back in stock
A non-contact capacitive liquid level sensor that detects whether liquid is present inside a non-metallic container or pipe without direct contact with the fluid. It works by measuring changes in capacitance through the container wall, making it suitable for corrosive liquids, strong acids, alkalis, and high-temperature fluids including boiling water.
The sensor includes adjustable sensitivity, a status indicator LED, and a 4-pin adapter for direct digital signal output to Arduino or other microcontrollers. It can penetrate non-metallic materials (plastic, glass, ceramic) up to 20 mm thick.
Key Features
- Non-Contact Detection – Senses liquid through container walls up to 20 mm thick
- Wide Material Compatibility – Works with plastic, glass, ceramic, and other non-metallic containers
- Adjustable Sensitivity – Fine-tune detection threshold for your application
- Status Indicator LED – Visual feedback of liquid presence
- Digital Output – High-level switch output with 4-pin adapter for Arduino
- Chemical Resistant – Unaffected by corrosive liquids, acids, or alkalis
- Wide Voltage Range – 5–12V DC
- IP65 Rated – Dust-tight and splash-resistant
Specifications
- Power Supply – 5–12V DC
- Output – Switch (high-level output)
- Response Time – 500 ms
- Operating Temperature – −5 °C to +105 °C
- Minimum Pipe Diameter – 11 mm (outer)
- Liquid Level Accuracy – ±1.5 mm
- Material – ABS
- Protection – IP65
Ideal For
- Tank and reservoir level monitoring
- Water dispensers and beverage machines
- Chemical and corrosive liquid detection
- Arduino-based automation projects
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- capacitance
- Capacitance is the amount of electrical charge a capacitor can store, usually measured in farads such as uF. Choosing the right capacitance value matters because it affects how well a circuit filters power, handles timing, or stores short bursts of energy.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
Find this product in
Brands
Sensors & Input
Supplier page — dfrobot.com
Supplier Description · 1.1 MB · Click any page to view full size
Related Tutorials
Free guides on learn.littlebird.com.au
