JSN-SR04T / AJ-SR04M Waterproof Ultrasonic Distance Sensor | 20cm–600cm Ranging Module for Arduino, ESP32 & Smart Water Level Projects

KSh1,000.00 KSh1,200.00 -17%

● In stock (25 available)

SKU	AT-0235
Category	Sensors
Availability	In stock
Shipping	Countrywide delivery · Free on orders over KSh10,000.00

Description

The JSN-SR04T / AJ-SR04M Waterproof Ultrasonic Distance Sensor Module is a high-performance waterproof ranging sensor designed for non-contact distance and level measurement in wet or harsh environments. Using ultrasonic wave reflection technology , the sensor emits high-frequency sound waves and measures the time taken for the echo to return, providing accurate distance data from 20cm to 600cm . The fully sealed transducer head makes it suitable for outdoor use, water level monitoring, and industrial automation . It interfaces easily with Arduino, ESP32, STM32, and Raspberry Pi through a standard 4-pin connection and outputs precise distance readings via pulse width signals.

Key Features

Fully waterproof ultrasonic sensor for outdoor and liquid-level applications.
Long-distance range up to 6 meters with high precision.
Resistant to humidity, dust, and water exposure.
Simple 4-pin interface for plug-and-play integration.
Ideal replacement for standard HC-SR04 in outdoor projects.
Works reliably in harsh and industrial environments .

Specifications

Model	JSN-SR04T / AJ-SR04M
Operating Voltage	3.3V – 5V DC
Measuring Range	20cm – 600cm (waterproof)
Effective Angle	< 15°
Accuracy	±1cm
Working Frequency	40kHz ultrasonic wave
Interface Pins	VCC, Trig, Echo, GND
Output Signal	TTL pulse (compatible with 3.3V/5V logic)
Cable Length	~2.5 meters (waterproof transducer)
Sensor Type	Integrated ultrasonic transmitter and receiver
Waterproof Rating	IP66 (sensor head)
Power Consumption	Low current operation (~8mA typical)
Compatibility	Arduino, Raspberry Pi, ESP32, STM32, AVR, PIC, and similar controllers