The M04 Non-Contact Liquid Level Detection Module Sensor provides a reliable and efficient solution for monitoring liquid levels without direct contact. Designed with durability and precision, it ensures long-lasting performance and accurate detection across a wide voltage range of 3.3V–26V (recommended not to exceed 24V). With its compact size, open-drain output, and strong adaptability, the M04 is ideal for integration into microcontrollers, PLCs, and automation systems. Suitable for applications such as water tanks, smart appliances, and medical equipment, it delivers stable detection while avoiding contamination and wear issues associated with traditional sensors. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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Features:
Non-contact sensing to prevent contamination and wear.
Wide operating voltage: 3.3V–26V (≤24V recommended).
Output: High level (no liquid detected), Low level (liquid detected).
Sensing distance: ~3–4.5mm (not suitable for metal surfaces).
Open-drain output for flexible integration.
Compatible with PLCs, microcontrollers, and Arduino.
Compact and easy to install (10mm × 30mm).
Strong environmental durability for extended service life.
Supports pull-up resistor adjustment for 3.3V or 5V logic levels.
Chip-only option available for advanced applications.
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Applications:
Water tanks and liquid storage monitoring.
Smart appliances with automated liquid control.
Industrial automation and process monitoring.
Medical equipment requiring sterile liquid detection.
Robotics and IoT-based liquid level sensing.
Aquarium and household water-level control systems.
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| General Specifications |
| Model | M04 Non-Contact Liquid Level Module |
| Operating Voltage | 3.3V–26V (≤24V recommended) |
| Power Consumption | Low |
| Output | Open-drain (High = No liquid, Low = Liquid detected) |
| Sensing Distance | ~3–4.5mm |
| Interface Pins | GND, VCC, OUT |
| Compatibility | PLCs, Microcontrollers, Arduino |
| Dimensions | 10mm × 30mm |
| Material | ABS |
| Shipment Weight | 0.0021 kg |
| Shipment Dimensions | 4 × 2 × 2 cm |
Please allow 5% measuring deviation due to manual measurement.
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Documentation:
FAQ:
- Question: If the M04 input is 12V, how do I connect the pull-up resistor? Answer: Depending on the connected device, pull it up to 5V or 3.3V if connected to a microcontroller port. The voltage can be adjusted according to the device's specifications.
- Question: Can it be connected to a microcontroller or Arduino? Answer: Yes, the open-drain output allows for connection to PLCs, microcontrollers, or other equipment. M03 can be directly connected to an Arduino microcontroller, while M04 requires a pull-up resistor for open-drain output.
- Question: What is the working principle? Answer: Liquid output is low level when detected by the inductor and high level when not detected.
- Question: Can I buy the chip alone? Answer: Yes, the chip is available for purchase separately.
Enhance your liquid level detection applications with the reliable and versatile M03/M04 Non-Contact Liquid Level Detection Module Sensor, offering precise sensing and easy integration into your projects without the need for direct contact.
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Package Includes:
1 x M04 Non-Contact Liquid Level Detection Module Sensor
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