MXT01D Integrated Miniature Level Sensor—Dual-Channel Cooperative Measurement Mode Featuring Both Contact Electrodes and Hydrostatic Pressure Sensing

I. Dual-Sensor Hardware Architecture

The MXT01D miniature level sensor features an integrated dual‑sensor architecture, combining a contact‑type electrode sensor with a hydrostatic pressure sensor. Each sensor independently acquires raw level data, and the device incorporates a 32‑bit low‑power MCU equipped with a fusion algorithm to enable real‑time cross‑checking and joint calibration of the two data streams.

Correctly addresses the inherent measurement limitations of a single sensor at the hardware level.

1. Hydrostatic pressure sensor: Based on the principle of hydrostatic pressure, it outputs linear, continuous level data, capturing subtle water-level changes in real time across the entire range—covering low, medium, and high levels—to enable uninterrupted acquisition of water-level measurements.

2. Contact‑type electrode sensing: The electrodes are unaffected by temperature, sediment, or immersion duration, enabling precise identification of the true water‑level reference point. They also provide real‑time correction for zero‑point drift and temperature‑induced errors that accumulate over long‑term use of pressure sensors, thereby preventing gradual data distortion.

II. Advantages of Dual-Sensor High-Precision Floor-Mounted Measurement (Practical On-Site Value)

1. Long-term, maintenance-free, high-precision performance: Conventional single-pressure level transmitters require on-site zero-point calibration every 3–6 months; in contrast, the MXT01D utilizes automatic electrode-based calibration, enabling long-term deployment—whether outdoors, in remote field locations, or within underground pipeline networks—for 1–2 years without manual adjustment, significantly reducing operational and maintenance costs and facilitating large-scale, mass deployment.

Cost-effective.

2. Maximum anti-interference performance in harsh aquatic environments: For complex water bodies such as stormwater inlets, standing water on road surfaces, and sewage networks containing sediment, foam, and impurities, the electrodes remain unaffected by sludge adhesion, while the pressure sensor ensures continuous measurements. Dual-channel redundancy enables mutual error correction, effectively preventing sediment from clogging the probe or introducing air.

Data spikes and false flood‑water alerts caused by bubble disturbances.

3. Miniature Integrated Design Without Compromising Measurement Performance: The entire device features a compact, all-in-one structure with no external discrete sensor components and an IP68 rating, enabling full submersion. Even in extremely confined installation spaces—such as curb edges, small manholes, or box culverts—it still maintains dual-sensor high‑precision redundancy.

Capability that balances miniaturization with monitoring accuracy.

4. Dual-redundancy assurance for data reliability: A single sensor failure can easily lead to data gaps and false alarms; with dual sensors serving as mutual backups, if one channel malfunctions, the other can independently provide valid liquid-level data. In scenarios such as flood‑water monitoring and urban‑network waterlogging early warning, this eliminates errors caused by instrument failure.

Loss of safety condition.

Summary

The MXT01D integrated miniature level transmitter employs a dual-sensor fusion measurement technology combining electrode and hydrostatic pressure sensing, automatically compensating for temperature drift and zero-point offset. Its overall measurement accuracy is ≤±0.2% FS, while dual-channel redundancy ensures data stability. Designed for long-term deployment in outdoor pipeline networks, it requires no manual calibration and is compatible with narrow…

Precision liquid-level monitoring in confined installation spaces.