DFRobot SEN0715 Miniature Non-Contact Liquid Level Sensor

This compact capacitive sensor detects the presence or level of liquid through non-metallic container walls, so it does not need to touch the liquid. That helps avoid corrosion, contamination and media adhesion when monitoring aggressive liquids such as strong acids, alkalis and toxic liquids in sealed environments.

A sensitivity button provides one-touch smart calibration, automatically finding the best setting for the current container material and wall thickness within 3–5 seconds. The sensing method works through materials such as plastic, glass and ceramic, with a supported sensing thickness of up to 15mm.

The sensor is only 6.1mm thick for embedding in tight spaces, and its PC-V0 flame-retardant enclosure is rated IP67 for rugged use. It provides a simple high/low level output and can be interfaced directly with popular controllers such as Arduino.

Included is 1 × Miniature Non-contact Liquid Level Sensor.

Features:

• One-touch automatic sensitivity calibration for quick adaptation to different containers
• Non-contact detection keeps the sensor safe from strong acids and alkalis
• Penetrates non-metallic containers (plastic, glass, ceramic) with sensing thickness up to 15mm
• Ultra-compact size for easy embedding; IP67 waterproof rating

Specifications:

• Operating Voltage: 3.3V~5V DC
• Sensing Thickness Range: ≤15mm
• Liquid Level Accuracy: ±3mm
• Current Consumption: 5mA±2mA
• Output Type: High/Low Level
• Output Current: ≤100mA
• Response Time: 500ms
• Operating Ambient Temperature: -20°C~65℃
• Cable Length: 50cm
• Material: PC-V0 Flame-retardant material
• Waterproof Rating: IP67
• Sensor Thickness: 6.1mm
• Automatic Calibration Time: 3–5 seconds

Suitable for household appliances, medical equipment, industrial liquid monitoring, chemical processing and sealed-container liquid detection.