Gentec-EO UP and XLP Detectors

Thermopile Laser Power Detectors

Gentec-EO’s thermal power detectors deliver highly accurate laser power measurements. With a vast array of cooling methods, and absorbers, we have options to suit any laser system. Choose an output from USB, Bluetooth or a Gentec-EO display to streamline your workflow. To find your perfect measurement product, use Gentec-EO’s Product Finder.
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Thermopile Laser Power Detectors

Ensure The Performance Of Your Lasers

Gentec-EO’s thermopile laser power detectors offer a comprehensive range of solutions for precise beam diagnostics. By converting absorbed laser energy into heat, these highly sensitive thermal sensors generate a proportional voltage that translates to exact power readings. With an extensive selection of aperture sizes, cooling options, and specialized absorbers, there is a tailored detector for any laser wavelength and power level, from microwatts up to kilowatts.

To integrate seamlessly with your workstation, our detectors feature a wide array of output options. In addition to the standard analog connection, users can select our embedded PC interfaces like USB, RS-232, or Ethernet, allowing you to plug directly into a computer and start measuring using our free software. For hazardous or hard-to-reach environments, our wireless BLU models transmit data up to 30 metres via Bluetooth, promoting a cleaner and safer workspace.

Accuracy is the core of our design. Every detector is supplied with a NIST-traceable calibration certificate, guaranteeing valid comparisons and compliance with international standards. To enhance productivity, our proprietary XNR Anticipation™ algorithm predicts the sensor’s thermal response, delivering measurements up to ten times faster with zero compromise on precision.

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NIST Traceable Calibration

Every detector is calibrated to NIST standards for highly accurate readings.

Diverse Outputs

Connect directly via USB, RS-232 or Bluetooth or use a Gentec-EO display or interface for Ethernet output and more.

Custom Options

All Gentec-EO UP meters can be customised, e.g. with cables and outputs to suit integration in your system.

Key Features

Explore Gentec-EO’s specialised absorbers, each designed to handle different types of laser.
  • UP-H Series: Versatile broadband and spectrally flat H absorber for general laser power measurements up to 500 W.
  • UP-HD Series: Features the strongest Broadband HD absorber on the market for high power up to 2,500 W.
  • UP-W Series: Incorporates the W absorber with an unrivalled 100 kW/cm² damage threshold for tightly focused beams.
  • UP-QED Series: Gold honoree technology utilising a volume diffusing absorber for extreme peak energy densities.
  • XLP Series: Engineered for low-noise, eXtreme Low Power measurements down to microwatts, handling up to 3 W.

Gentec-EO UP & XLP Detectors

UP - UP19K with Integra
ModelMax PowerAperture DiameterCooling TypeSpectral Range
XLP12-3S-H2-D03 W12 mmConvection190 nm – 20 μm
XLPF12-3S-H2-D03 W12 mmConvection190 nm – 20 μm
XLP12-3S-VP-D03 W12 mmConvection250 nm – 20 μm
UP10K-2S-H5-L-D02 W10 mmConvection190 nm – 20 μm
UP10P-2S-H5-L-D02 W10 mmConvection190 nm – 20 μm
UPF10K-2S-H5-L-D02 W10 mmConvection190 nm – 20 μm
UPF10P-2S-H5-L-D02 W10 mmConvection190 nm – 20 μm
UP17P-6S-H5-D06 W17 mmConvection190 nm – 20 μm
UP12E-10S-H5-D010 W12 mmConvection190 nm – 20 μm
UP19K-15S-H5-D015 W19 mmConvection190 nm – 20 μm
UP12E-20H-H5-D020 W12 mmHeatsink190 nm – 20 μm
UP19K-30H-H5-D030 W19 mmHeatsink190 nm – 20 μm
UP25N-40S-H9-D040 W25 mmConvection190 nm – 20 μm
UP55N-40S-H9-D040 W55 mmConvection190 nm – 20 μm
UP19K-50L-H5-D050 W19 mmLarge Heatsink190 nm – 20 μm
UP100R-50S-H12-D050 W100 mmConvection190 nm – 20 μm
UP12E-70W-H5-D070 W12 mmWater190 nm – 20 μm
UP25N-100H-H9-D0100 W25 mmHeatsink190 nm – 20 μm
UP55N-100H-H9-D0100 W55 mmHeatsink190 nm – 20 μm
UP19K-110F-H9-D0110 W19 mmFan190 nm – 20 μm
UP19K-200W-H9-D0200 W19 mmWater190 nm – 20 μm
UP25N-250F-H12-D0250 W25 mmFan190 nm – 20 μm
UP55N-300F-H12-D0300 W55 mmFan190 nm – 20 μm
UP25M-350W-H12-D0350 W25 mmWater190 nm – 20 μm
UP55M-500W-H12-D0500 W55 mmWater190 nm – 20 μm
UP55G-600F-HD-D0600 W55 mmFan190 nm – 20 μm
UP55M-700W-HD-D0700 W55 mmWater190 nm – 20 μm
UP55C-2.5KW-HD-D02500 W55 mmWater190 nm – 20 μm
UP17P-6S-W5-D06 W17 mmConvection190 nm – 10 μm
UP19K-15S-W5-D015 W19 mmConvection190 nm – 10 μm
UP19K-30H-W5-D030 W19 mmHeatsink190 nm – 10 μm
UP55N-40S-W9-D040 W55 mmConvection190 nm – 10 μm
UP19K-50L-W5-D050 W19 mmLarge Heatsink190 nm – 10 μm
UP19K-50F-W5-D050 W19 mmFan190 nm – 10 μm
UP19K-50W-W5-D050 W19 mmWater190 nm – 10 μm
UP55N-50H-W9-D050 W55 mmHeatsink190 nm – 10 μm
UP55N-50F-W9-D050 W55 mmFan190 nm – 10 μm
UP55M-50W-W9-D050 W55 mmWater190 nm – 10 μm
UP16K-15S-QED-D015 W16 mmConvection300 nm – 2.5 μm
UP16K-30H-QED-D030 W16 mmHeatsink300 nm – 2.5 μm
UP52N-50S-QED-D050 W52 mmConvection300 nm – 2.5 μm
UP16K-100W-QED-D0100 W16 mmWater300 nm – 2.5 μm
UP52N-100H-QED-D0100 W52 mmHeatsink300 nm – 2.5 μm
UP52N-150F-QED-D0150 W52 mmFan300 nm – 2.5 μm
UP52M-300W-QED-D0300 W52 mmWater300 nm – 2.5 μm
  • STAND-S-233 / STAND-S-443-M: Heavy-duty steel stands with bases for mounting detectors.
  • NAN-915: Waterproof, hardshell carrying case with padded dividers for safe transport.
  • FOA-FULL-FC / SMA / ST: Fibre optic adaptors with SM1 external threads for easy connection.
  • XLP12-TUBE / UP19K-TUBE: Isolation tubes designed to eliminate environmental air turbulence fluctuations.
  • EXT-# Extension Cables: Robust cables in various lengths up to 40 metres.
  • FAN-12V: External 12 V power supply for fan-cooled detectors.
Gentec-EO Power Detectors Overview
  • Micromachining and ultra-short pulsed laser beam monitoring.
  • Low-noise power diagnostics across a broad range of wavelengths.
  • Industrial materials processing, cutting, and welding.
  • NIST-traceable factory calibration of medical and OEM laser equipment.
  • Field service diagnostics and integrated scientific research systems.

You ask, we answer

Yes. The optional INTEGRA PC interface combines the detector and meter, letting you plug directly into your PC via USB or RS-232 to measure with the free PC-Gentec-EO software.
NIST-traceable calibration ensures your readings match international standards, helping you comply with regulations, avoid costly errors, and improve total confidence in your high-performance laser system. Recommended calibration intervals are 18 months for a new unit and 12 months for a recalibrated unit.
Yes! Please always ensure your laser specifications are within the damage threshold of your detector. You can check this for any Gentec-EO model by finding the specific model above on Gentec-EO’s website, and using the “Test Your Laser Compatibility” tool under the “Specifications” tab.

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