Attributes

Brand	-
Category	Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin	-
Model Number	M03/M04
Sensor Type	Capacitive Non-Contact
Supply Voltage	DC 3.3V to 5V
Output Type	Digital Signal (High/Low)
Detection Thickness	Max 13mm
Response Time	Less than 0.5s
Operating Temp	-20°C to 85°C
PCB Material	FR-4 Glass Epoxy
Connector Type	3-Pin PH2.0
Weight	4.5 Grams

5 reviews

Anonymous

Mar 10, 2026

Rating: 5/5

Professional grade

Using multiple units for industrial alerts. Very stable.

Anonymous

Feb 19, 2026

Rating: 5/5

Fast shipping

Product works as described. Easy to integrate with ESP32.

Anonymous

Feb 15, 2026

Rating: 3/5

Average

Works but instructions were minimal. Had to search online for wiring.

Anonymous

Jan 29, 2026

Rating: 4/5

Good module

Sensitive enough. Had to tweak the potentiometer slightly.

Anonymous

Jan 18, 2026

Rating: 5/5

Excellent for tanks

Used it for a rainwater tank monitor. Works through plastic perfectly.

5 FAQ

Q: Is the output analog or digital?

A: This module provides a digital switching output signal.

Q: Can I use this for fuel levels?

A: It is designed for water and conductive liquids. Fuel may not trigger detection.

Q: Does it work with glass containers?

A: Yes, it can detect liquid through glass within the thickness limit.

Q: Does it come with cables?

A: Yes, it includes a short cable with a 3-pin connector.

Q: What is the max wall thickness?

A: The maximum detection thickness is approximately 13mm.

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