BMT Waterproof Ultrasonic Sensor JSN-SR04T Measuring Tools & Sensors Module

The BMT Waterproof Ultrasonic Sensor (JSN-SR04T) is a rugged distance measurement module designed for reliable operation in both indoor and outdoor environments. Using ultrasonic sound waves at 40kHz, it accurately measures distance by calculating the time taken for echoes to return from a target object.

Unlike standard ultrasonic sensors, this version features a fully waterproof probe, making it suitable for applications exposed to moisture, dust, or harsh weather conditions. It is commonly used in tank level monitoring, obstacle detection, robotics, and smart irrigation systems.

Feature(s)

Waterproof ultrasonic probe for outdoor and wet environments

Accurate non-contact distance measurement

40kHz ultrasonic operating frequency

Stable performance with low power consumption

Suitable for robotics, automation, and liquid level sensing

Works in harsh environmental conditions (-10 C to 70 C)

Wide detection angle for general-purpose applications

Specifications

Operating Voltage: 5V DC

Working Current: ~30mA

Quiescent Current: ~5mA

Operating Frequency: 40kHz

Measuring Range: 25cm - 4.5m

Blind Zone: 25cm

Resolution: ~0.5cm

Detection Angle: <50

Operating Temperature: -10 C to 70 C

Storage Temperature: -20 C to 80 C

Pin Configuration

VCC: +5V Power Supply

GND: Ground

TRIG: Trigger (Control Input)

ECHO: Echo (Signal Output)

Additional Information

The BMT JSN-SR04T waterproof ultrasonic sensor is ideal for applications such as water tank level monitoring, parking sensors, robotics navigation, and outdoor obstacle detection. Its sealed probe design ensures reliable performance even in humid or exposed environments where standard ultrasonic modules would fail.

What's in the box
1 x BMT Waterproof Ultrasonic Sensor - JSN-SR04T