Gentec-EO PRONTO Meters

Pocket-sized, high-precision laser power meters

The Gentec-EO PRONTO series provides compact, high-precision laser power and energy measurement at the press of a button. Featuring an intuitive colour touchscreen, these versatile portable meters deliver fast, accurate power readings for most common lasers.
Request a Quote

Pocket-sized, high-precision laser power meters

Ensure the Performance of Your Lasers

Engineered for versatility across field service and laboratory environments, the PRONTO family covers a wide measurement range, from low power readings as little as 300 pW with the PRONTO-Si, to high-power 10 kW beams with the PRONTO-10K.

Compact pocket-sized models allow easy measurements in tight optical setups. High-power models feature a large 55 mm aperture to accommodate large high power beams, while a cable allows the display to be positioned away from the sensor.

The popular PRONTO-250-EZ-Y (ideal for fibre & YAG lasers) and PRONTO-250-FLEX-YC (ideal for CO2 lasers) are available from our webshop. PRONTO-250-EZ models are specifically adapted for dirty environments and can be cleaned on-the-go without affecting precision.

Key features include serial command integration for remote control, customisable wavelength settings, internal memory for data logging, and integrated threaded mounting holes for hands-free operation on optical stands. Selected models offer traceable calibration options covering CO2 lasers and single-shot energy measurement in addition to standard YAG calibration.

go to product Specification

Compact Design

Pocket-sized probe for measurements in tight spaces. Ideal for service engineers.

Intuitive Display

Colour touchscreen LCD for simple operation and navigation.

Calibration Options

Choose from standard visible/IR (Y), CO2 (C) and energy (E) calibration on PRONTO-250 models.

Key Features

Explore the PRONTO range, from low to high powers.
  • PRONTO-Si: Photodiode-based meter for low-power measurements from 0.3 nW up to 800 mW with a slim 6 mm profile.
  • PRONTO-50-W5: Compact 50 W meter with high-damage threshold W absorber for focused beams up to 100 kW/cm².
  • PRONTO-250-EZ: Pocket-size 250 W power meter with an easy-to-clean absorber adapted for dirty environments.
  • PRONTO-250-FLEX: Pocket-size 250 W power meter offering flexible calibration options for visible/NIR, CO₂, and energy modes.
  • PRONTO-500: Portable power meter measuring up to 500 W single shot (continuous up to 40 W) with a large 55 mm aperture.
  • PRONTO-500-IPL: Portable energy meter with protective window designed for IPL sources measuring up to 350 J/pulse.
  • PRONTO-6K: High-power portable meter measuring up to 6000 W with 55 mm aperture.
  • PRONTO-10K: High-power portable meter measuring up to 10,000 W with 55 mm aperture and all-metal construction.

Gentec-EO PRONTO Meters

PRONTO-250 Case
PRONTO-250 Guide
PRONTO High Power Guide
PRONTO User Interface
Pronto-Si
Pronto-250_Stand
ModelMax Power (W)Aperture Diameter (mm)Absorber Type
PRONTO-Si0.810 x 10Si – Silicon photodiode
PRONTO-50-W55019W – High average power density
PRONTO-250-EZ-Y25019EZ – Easy-to-clean absorber
PRONTO-250-FLEX-YC25019H9 – For CO2 lasers
PRONTO-50050055H – High Power Broadband
PRONTO-500-IPL50055H9 – Protective window for IPL
PRONTO-6K6,00055H – High Power Broadband
PRONTO-10K10,00055H – High Power Broadband
  • STAND-S-233 & STAND-S-443: Optical mounting stands with steel posts and threaded bases for hands-free operation.
  • NAN-915 / Transport Case: Hardshell, waterproof carrying case with padded dividers for safe transport.
  • Threaded Adaptor for PRONTO-Si: SM1-compatible adapter for mounting optical accessories and filters.
  • FOA Fiber Optic Adaptors: FC/PC, SMA, and ST fiber optic connectors with SM1 threads for PRONTO-Si.
PRONTO HP Data Sheet
PRONTO-250 Data Sheet
PRONTO-Si Data Sheet
  • Field service and maintenance of laser processing systems. 
  • High power laser monitoring in industrial laser cells. 
  • Industrial materials processing, including cutting, and welding. 
  • NIST-traceable factory calibration of medical and OEM laser equipment. 
  • Verification of laser classification compliance by manufacturers, customs authorities and laser safety officers. 

You ask, we answer

It’s easy! First, ensure that your laser beam fits within the sensor’s aperture and that the power density is within the sensor’s specified limits. Set the wavelength correctly, then press the play button to arm the meter. Now you can fire your laser. After typically 5 seconds the measured power will then be displayed.
The PRONTO-250 range is suitable for many common lasers from 1–250 W. It can measure fibre, YAG, UV, green and CO₂ lasers, provided the relevant power and energy density limits are respected. For improved accuracy at CO₂ wavelengths, choose a model with CO₂ (C) calibration.
Yes, the PRONTO-250-EZ is specifically adapted for dirty settings and can be cleaned on the go without affecting its high-precision measurement capabilities.

Want to know more?
Contact Our Team of Experts.

Request a Quote

Explore related products

Explore Blogs