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
