Practical Light-Color-Spectral Measurement Instruments
For LED & Any Other Type Light Source

The High Accuracy You Require
Gigahertz-Optik's BTS256-LED Gigahertz-Optik's BTS256 series meters use the latest LED measurement technology to accurately measure photometric quantities with full color and light spectral data included.

The Flexibility You Need
The BTS256 series meters' compact portable design makes it easy for you to maneuver the meter into position, enabling measurement both under real application conditions as well as in the lab.

The Versatility To Do The Job
The BTS256-E Light-Color-Spectral Meter measures illuminance in lux as well as color quantities and spectral distribution. The BTS256-LED Tester can be used four different ways: stand-alone, mounted onto an integrating sphere or goniometer bench or with a diffuser window attachment.

The Capability For System Integration
With our software development kits, you can expand the capabilities of the BTS256 series meters and integrate the meters into your own applications.

UV-C Radiometer for Excimer & Low Pressure Hg Lamps and UV-C LEDs

Calibrated at 222nm, 254nm & 250-300nm for Disinfection Efficacy Assessment


Far-UVC light, for example 222nm produced by Kr-Cl excimer lamps, has been shown to effectively inactivate bacteria but with less photobiological hazard for humans. This is because far-UVC light cannot penetrate human skin or eyes as deeply as longer wavelength UV radiation.

The X1-1-UV-3727 handheld radiometer provides a real time display of irradiance or dose and includes a peak-hold function. The device may also be operated via its USB interface with optional S-X1 software.  The cosine corrected UV-3727 detector is calibrated at 222nm for excimer (Kr-Cl) plus menu selectable calibration factors for common UV LED wavelengths and 254nm low-pressure Hg lamps.  Each meter is supplied with a traceable calibration certificate from the ISO-17025 accredited Gigahertz-Optik optical radiation calibration laboratory.

Make Sure Your LEDs Show Their "True Color"

LEDs only show their "true colors" after they have been assembled and under the operating parameters of the particular application.

Get true LED measurement readings with the BTS256-LED

See this LED Color & Light Meter in Action

Video of the BTS256-LED for LED Measurment from Gigahertz-Optic

Our 10 minute product video demonstrates all aspects of the BTS256-LED, including software and optional attachments.


Call us today at 1-978-462-1818 for expert advice on your LED light measurement needs.

Measure Any Type Of Light Source Accurately

Precision Engineered For Results You Can Trust

New: Watch our Gigahertz Optik Company Video

Gigahertz Optik Company Video

In our new company video you have the opportunity to get an overview of our services, products and the people who are behind all the product developments with "Made in Germany" quality.

Introducing Jim Litynski, Business Development Manager

We take great pleasure in welcoming Jim Litynski, as Gigahertz-Optik Inc Business Development Manager based in the Amesbury, MA USA subsidiary office.

Jim comes to us with extensive experience in technical sales and management with a background in Physics and Optics. His previous roles included Key Account Manager of Dexter Magnetics, Regional Sales Manager of Celera Motion and President of the US subsidiary of Piezosystem Jena GmbH. Jim has a B.S. in Physics from Rensselaer Polytechnic Institute.

Jim Litynski