SemLab CLS-24BP Contactless Liquid Level Sensor Module - 5V to 24V, Capacitive Non-Contact Liquid Detection, NPN/PNP Output

The SemLab CLS-24BP Contactless Liquid Level Sensor Module is a capacitive, non-invasive liquid detection solution designed to detect the presence of liquid through non-metallic container walls without direct contact with the fluid. By using capacitive sensing technology, the module can detect liquids through materials such as plastic, glass and acrylic, helping prevent sensor corrosion, contamination and degradation caused by direct exposure to liquids or chemicals.

The module operates from a wide 5V to 24V DC supply and provides a selectable NPN or PNP-style output, making it suitable for interfacing with PLC inputs, relays, microcontrollers and automation systems. It features an onboard sensitivity adjustment potentiometer and LED status indicator for convenient calibration. With a sensing capability through container walls up to 20 mm thick, the SemLab CLS-24BP is suitable for liquid presence detection, tank monitoring, industrial automation, chemical applications, agricultural systems and IoT projects.

Features:

1. Non-contact capacitive liquid level detection
2. Detects liquid through non-metallic container walls
3. Wide 5V–24V DC operating voltage
4. Supports selectable NPN and PNP output modes
5. Up to 20 mm container-wall sensing capability
6. Stated liquid level accuracy of ±1.5 mm
7. Fast response time of ≤800 ms
8. Up to 100 mA output drive capability
9. Built-in sensitivity adjustment potentiometer
10. Onboard LED for detection/status indication
11. 4-pin header interface for easy connection
12. Compatible with PLCs, relays, Arduino, ESP32 and other controllers
13. Open-source hardware and firmware
14. Suitable for industrial automation, IoT, agriculture and chemical applications
    

Specifications:

Pinout :

For more information checkout : Contactless Liquid Level Sensor Module Wiki Page

Package Includes:

1 × SemLab CLS-24BP Contactless Liquid Level Sensor Module