Laser distance sensors
Laser distance sensors measure range with light instead of sound. Their narrow beam picks out small targets and long distances with high resolution, so they complement ultrasonic sensors where the beam must not spread.
1 model
Compare Laser distance sensors
| Model | Range | Blind zone | Protection | Supply voltage |
|---|---|---|---|---|
| R01-V1.0 Waterproof Laser Distance Sensor, 2 to 400 cm, IP67 | 2–400 cm | 2 cm | IP67 | 3.3–5 V |
How it works
The sensor emits pulses of infrared laser light and times the reflection (time of flight), or measures the phase shift of modulated light. The narrow spot makes readings independent of nearby objects that would echo back an ultrasonic pulse.
How to choose
- Range and resolution
- Target reflectivity and ambient light
- Update rate for moving targets
- Laser class for eye safety in your product
Frequently asked questions
Laser or ultrasonic distance sensor?
Choose laser for long range, small targets and fast updates. Choose ultrasonic for transparent or dark targets, dusty air, low cost and wide-area obstacle detection.