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Radiant Electronics
  • About Slider
  • About Slider

Radiant X4

Low Cost Functionality

Adjustable Backlight

Adjustable Backlight

The X4 has 5 levels of brightnesses for laser measurements in dark rooms.

Color Cases

Color Cases

Case design files will be provided upon request- 3D Printed cases sold separately.

3.7W Sensor

3.7W Sensor

Dense peltier based sensor for accurate readings up to 3.7W.



The Radiant X4 was designed to give hobbyists an affordable laser power meter for measuring the output of laser devices. The laser power meter uses a backlit liquid crystal display to show output readings without setup, and has USB connectivity for real time graphing.
The included USB interface and data logging software that supports Windows, Mac and Linux, the Radiant X4 allows the user to connect their computer for custom real time graphing under many common protocols. The graphs can then be exported as an image or CSV file for import into other programs.


Power supply: 5V USB
Sensor area: 225mm^2
Cooling: Conduction
Power range: 1mW to 3700mW (10mW minimum recommended)
Resolution: 100μW
Response time (0-95%): 25s
Spectral range: 400nm to 2000nm


 Radiant LightSpeed data logging interface software (Windows)
 Peregrine data logging interface software (Windows, Mac, Linux)
 Software zeroing
 3800mW maximum power
 1mW min power (10mW recommended)
 100μW resolution
 Peak detection
 Multiple data stream protocols
 Rich menu system with Ellipsis-X firmware

Where to Buy

Radiant Laser Power Meters are available at:


Illumination Supply LLC

Please use the form on the right for technical inquiries or questions relation to Radiant Electronics’ products.

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