Mysentech MER-LDM Continuous or Segmented Level Measurement I2C Sensor Module
Mysentech MER-LDM Continuous or Segmented Level Measurement I2C Sensor Module - Image 2
SKU: SENS-1335
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Mysentech MER-LDM Continuous or Segmented Level Measurement I2C Sensor Module

₹439.00 (Inclusive of all taxes)
Out of Stock

The Mysentech MER-LDM is a non-contact capacitive liquid level sensor module featuring an I2C digital interface for seamless integration with microcontrollers like Arduino, Raspberry Pi, ESP32, and STM32. Operating from 2.5V to 5.5V, it provides continuous or segmented level measurement with up to 1% accuracy.

Features

  • Non-contact capacitive sensing penetrates 1–10mm non-metallic container walls.
  • High-accuracy measurement up to 1% dependent on medium and installation.
  • Digital I2C interface for straightforward microcontroller communication.
  • Wide operating voltage range from 2.5V to 5.5V DC.
  • Robust operating temperature range from -40°C to +85°C.

Out of stock

Description

The Mysentech MER-LDM sensor module utilizes a high-frequency capacitive sensing chip (MC11S/MC12G) to detect changes in the dielectric constant of the medium. Variations in capacitance correspond directly to liquid level changes, enabling precise continuous or segmented measurement without physical contact with the liquid.

Designed for industrial and embedded applications, the module is available in differential (MER-LDM) and single-ended-to-ground (MER-LSP) configurations. Its robust design supports operation in harsh environments, making it suitable for integration into automated control systems, PLCs, and data acquisition setups.

Key Features

  • Non-contact capacitive sensing principle for reliable, maintenance-free operation.
  • Differential measurement version (MER-LDM) for improved noise immunity in challenging installations.
  • Digital I2C output provides stable, noise-resistant communication with host controllers.
  • Wide supply voltage compatibility from 2.5V to 5.5V supports both 3.3V and 5V logic systems.
  • Extended operating temperature range from -40°C to +85°C ensures performance in extreme conditions.
  • High-value build optimized for precision level monitoring in non-metallic tanks and vessels.
  • ROHS compliant construction for environmentally conscious manufacturing and use.

Applications

  • Continuous liquid level monitoring in chemical processing and storage tanks.
  • Segmented level detection for appliance applications like washing machines and dishwashers.
  • Embedded fluid management in agricultural irrigation and hydroponic systems.
  • Process control and tank inventory management in light industrial automation.
  • Liquid level sensing in laboratory equipment and medical devices.

Technical Specifications

Item TypeContinuous or Segmented Level Sensor Module
Sensing PrincipleNon-contact Capacitive
Supply Voltage2.5V to 5.5V DC
Output InterfaceI2C
Measurement AccuracyUp to 1%
Penetration Depth1–10mm (Non-metallic container)
Operating Temperature-40°C to +85°C
ComplianceROHS

Frequently Asked Questions

What is the difference between the MER-LDM and MER-LSP versions?

The MER-LDM is a differential version of the sensor, which offers superior noise immunity by measuring the capacitance between two electrodes. The MER-LSP is a single-ended-to-ground version, measuring capacitance between a single electrode and ground. Choose the differential version for electrically noisy environments or longer cable runs.

What is the maximum container wall thickness this sensor can work through?

The MER-LDM module is designed to penetrate non-metallic container walls with a thickness of 1 to 10 millimeters. Performance and accuracy are optimal within this range. The sensor cannot function through metallic walls, as they will shield the electric field.

How do I interface the MER-LDM module with an Arduino?

Connect the module's VCC and GND pins to your Arduino's 3.3V or 5V power supply (within 2.5V-5.5V). Connect the SDA and SCL pins to the corresponding I2C pins on your Arduino (e.g., A4/A5 on Uno). Use the manufacturer's provided library or standard Wire library commands to read the digital level data from the sensor's I2C address.

What factors affect the claimed 1% accuracy?

The up-to 1% accuracy is dependent on the dielectric constant of the liquid medium and the precision of the electrode installation. Stable environmental conditions and proper mounting against a clean, uniform container wall are essential to achieve the highest accuracy. Calibration for your specific liquid and container is recommended.

Package Includes

  • 1 x Mysentech MER-LDM I2C Sensor Module

Additional Information

Weight 0.025 kg
Dimensions 24 × 22 × 2 cm

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