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Home / Computer Hardware, Monitors & Peripherals / Waterproof Ultrasonic Ranging Module / Dual-Probe Ranging / JSN-SR04T / 0 Blind Spot Robot Obstacle Avoidance

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Model Number JSN-SR04T
Operating Voltage DC 5V
Measuring Range 2cm to 450cm
Accuracy ±3mm
Interface Protocol UART / TTL
Waterproof Grade IP67
Operating Temperature -20°C to 70°C
Transducer Beam Angle ≤15 Degrees
Extension Cable Length 2.5 Meters
Package Weight 45 Grams

5 reviews

A

Anonymous

Apr 02, 2026

Rating: 4/5

Works well but needs calibration

Great sensor overall. Had to tweak the code slightly for consistent readings at close range. Cable is long enough for most projects.

A

Anonymous

Apr 01, 2026

Rating: 5/5

Perfect for outdoor rover

Used this for a garden monitoring robot. The waterproofing held up during light rain. Zero blind zone is accurate as advertised.

A

Anonymous

Mar 08, 2026

Rating: 5/5

Excellent build quality

The sealed transducer is robust. Using it for tank level measurement in a non-corrosive fluid. Very satisfied with the purchase.

A

Anonymous

Feb 20, 2026

Rating: 3/5

Good but sensitive to noise

Works as expected but noticed some jitter when motors were running at full speed. Shielding helped. Waterproofing is solid.

A

Anonymous

Feb 17, 2026

Rating: 5/5

Reliable distance data

Compared to the standard SR04, this one is much better for wet environments. Dual transducer design reduces interference.

5 FAQ

Q: What library do you recommend for Arduino?

A: The standard NewPing library works well with this module.

Q: Does it come with mounting hardware?

A: No, mounting brackets are sold separately. The cable has a connector ready for breadboards.

Q: What is the actual blind zone?

A: It starts measuring accurately from about 2cm, effectively zero blind zone compared to standard models.

Q: Is this compatible with 3.3V logic boards?

A: Yes, but we recommend a logic level converter for best stability.

Q: Can this be submerged completely?

A: The transducer is waterproof, but the electronics box should not be submerged.

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