> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Capacitive Liquid Level Sensor for Arduino

**Type:** Product page · **SKU:** SEN0507 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/capacitive-liquid-level-sensor-for-arduino.html ([markdown](https://core-electronics.com.au/capacitive-liquid-level-sensor-for-arduino.html.md))

This capacitive liquid sensor with adjustable sensitivity can be used to detect high-viscosity and low-corrosive liquids, such as glue, lubricating oil,...

## Pricing

- **Price:** $99.70 (inc GST) — $90.64 AUD, exc GST
- **Quantity discounts:** 6+ $86.11 (exc GST) · 12+ $82.48 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 20 and Aug 24.

## How to buy

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- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

####  Introduction 

Different from our previous liquid level sensors, **this capacitive liquid sensor can be used to detect high-viscosity and low-corrosive liquids, such as glue, lubricating oil, grease, ink, engine oil, powder and other special materials.** The sensitivity of the sensor can be adjusted by the knob (clockwise to increase, counterclockwise to decrease) to adapt to more media. It has an indicator light to feedback the sensor status in real time, and comes with polarity protection and over-current protection mechanism.

Capacitance contact detection: Determine whether there is liquid and distinguish between liquids by detecting the capacitance of the liquid.

Conical head of anti-hanging-liquid design: Reduces the phenomenon of hanging liquid in detecting.

Special circuit design: Even if there are liquid residues, foam, scabs, etc. in the probe part, the appearance of false signals can be avoided by adjusting the sensitivity.

Stability design: With temperature compensation, the liquid level sensor can detect stably in the range of low temperature -25°C and high temperature 75°C. These detailed designs ensure the stability of detection performance to a large extent.

Material: The head is made of PEEK material, the shell is made of 316 stainless steel, with general anti-corrosion performance, M12\*1 standard thread, easy to install.

**Precautions**

The liquid sensor should not be used in the following cases:

10. Temperature exceeds 75°C
11. Pressure higher than 0.3MP
12. There is dry glue on the probe that can't be removed
####  Features 

14. Can detect high viscosity and low corrosive liquids
15. Conical head of anti-hanging-liquid design
16. NPN+PNP dual output
####  Applications 

18. Detect high viscosity and low corrosive liquids
####  Specification 

20. Detection Mode: Contact detection
21. Detection Principle: Capacitive detection
22. Power Supply Voltage: 12-24V
23. Detection Object: High viscosity and low corrosive liquid
24. Speed: Response speed is 20ms, switch output frequency is 50Hz
25. Output Signal: NPN+PNP Dual Output
26. Output Current: Max100mA
27. Working Power: <0.5W
28. Working Temperature: -25°C~+80°C
29. Protection Level: IP65
30. Appearance Material: PEEK/316 stainless steel
31. Protection Mechanism: Polarity protection, over-current protection
32. Wiring Instructions: Brown-positive, blue-negative, black-NPN, white-PNP
####  Parts List 

34. Capacitive Liquid Level Sensor x1
35. Screwdriver x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/i/m/image_4003.jpg)