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Accurately measure distances over a wide range with our assortment of ultrasonic distance sensors from Maxbotix and Devantech.
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Devantech SRF04 Ultrasonic Ranger
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Devantech SRF04 Ultrasonic Ranger
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Devantech SRF04 Ultrasonic Ranger
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This great sonar ranger from Devantech offers a wide range from 3cm to 3m. For further range see the SRF08. The SRF04 is interfaced using the one output line to ping the sensor and an input line to read the echo.

Features and Specifications:

  • Voltage: 5 V
  • Current: 30 mA typcially 50 mA maximum
  • Frequency: 40 kz
  • Min Range: 3 cm (1.18 in)
  • Max Range: 3 m (9.8ft )
  • Input Trigger: 10 ┬ÁS minimum, TTL level pulse
  • Echo Pulse: Positive TTL level signal, proportional to range
  • Weight: 11.33 gm (0.4 oz)
  • Sensitivity: Detect a 3 cm (1.18 in) diameter stick at > 2 m (6.56 ft)
  • Connection Type: Digital


This is the SRF04 Ultrasonic ranger made by Devantech. The Ultrasonic detector can detect from ~4 inches to ~10 feet.
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