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The JSN-SR04T is an industrial-grade ultrasonic distance sensor with a genuinely waterproof design, separating the sensing transducer, sealed inside a probe, from the control board that processes the signal and talks to a microcontroller. That split matters for outdoor or wet-environment measurements, such as monitoring the water level in a rain barrel or outdoor tank, since only the sealed probe needs to face the moisture, while the sensitive control electronics stay protected.
Detection range spans 25cm to 4.5m, notably further than many basic ultrasonic modules aimed purely at short-range obstacle avoidance, making it a better fit for larger-scale distance sensing, such as measuring the level in a tall tank or detecting objects across a wider space.
Resolution is 0.5cm, and the detecting angle is under 70 degrees, giving a reasonably focused measurement cone rather than an overly wide field that could pick up unwanted reflections from the sides. Operating voltage is 5V, with an operating current of 30mA and a static current of just 5mA, keeping power draw modest for continuous monitoring applications.
The probe connects to its control board via a 2.5m cable, giving plenty of reach to mount the sensor away from an enclosure or control panel, and the whole assembly is rated for -10C to 70C operation. It measures 41mm by 28mm by 12.5mm and weighs 50g, and is described as Arduino-compatible for straightforward integration into common microcontroller projects.
Anyone measuring liquid levels in an outdoor or industrial tank, or needing ultrasonic distance sensing in a wet or exposed environment where a standard, unsealed ultrasonic module would be at risk, will find the JSN-SR04T's waterproof, separate-probe design the more appropriate choice.
The transducer is sealed inside a separate probe, connected to the control board by a cable, protecting the electronics from moisture.
25cm to 4.5m.
2.5m.
0.5cm.
Yes, it's described as Arduino-compatible.
| Brand | Generic |
|---|---|
| Selling unit | PCS |
