PRONTO-250-EZ, PRONTO-250-FLEX, PRONTO-250, PRONTO-250-PLUS, PRONTO-50-W5
2D CAD file (PDF)
- 9515D
- English
PRONTO-250
P/N 202917Portable laser power meter for up to 250 W.
Traceable calibration:
Product family key features
This product has been superseded. Check this page for the new product.
Pocket-Size
This mid to high power handheld probe is so compact it fits in your pocket!
Easy-to-Use
The touch screen color LCD allows for a friendly user interface. You can make a measurement with just the touch of a button!
User Settable
You can set the wavelength, brightness and screen orientation to adapt to your application.
Data Logging
Save your data to the internal memory and then transfer it to your PC over the USB connection.
From Low to High Powers
Thanks to a low noise level and high damage threshold, the PRONTO can measure powers from 1 W to 250 W.
Fully Calibrated
The PRONTO-250 comes fully calibrated: every wavelength between 248 nm and 2.5 μm (YAG), and a real calibration at 10.6 μm (CO2). The PRONTO-250-PLUS has all these calibrations and is also calibrated for energy measurements.
Hands-Free Operation
Place it on a flat surface or use one of the 2 threaded holes that we have integrated in the casing for safe use with optical stands.
Compatible stand
Related products
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PRONTO-250-FLEX-Y
Portable laser power meter for up to 250 W. Includes 3 measurement modes : SSP, CWP and SSE.
Included
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MAE-USB
USB cable for MAESTRO, U-LINK (USB), and PRONTO.
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Calibration
Calibration certificate
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CASE
Transport case
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PWC
Personal wavelength correctionTM Certificate
Measurement capabilities
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Maximum average power
250 W -
Minimum average power
0.5 W -
Noise equivalent power
10 mW -
Spectral range1
0.193 - 20 μm -
Power calibration uncertainty
±3 % -
Exposure time
5 s -
- 1. For the calibrated spectral range, see the user manual.
Continuous power mode
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Response time
5 s
Damage thresholds
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Maximum average power density1
45 kW/cm² -
Maximum allowable casing temperature
65 °C -
- 1. At 1064 nm, 10 W CW. May vary with wavelength and average power.
Controller and GUI specifications
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Battery type
Rechargeable Li-ion -
Battery life
17 hours or 4,200 measurements (with brightness set at 25%) -
Display resolution
1 mW -
Display size
28.0 x 35.0 mm (128 x 160 pixels) -
Display type
Touch Screen Color LCD -
Backlight
Adjustable -
Internet upgrades via
USB -
Data storage
50,000 pts -
Battery recharge via
USB
Physical characteristics
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Aperture diameter
19 mm -
Absorber
H9 -
Dimensions
59.0W x 181.4L x 17.0D -
Weight
0.21 kg -
Mounting holes
2 x 8-32
Price:
Request lead time before ordering.
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NAN-915
Hardshell, waterproof carrying case with padded dividers. Internal size 13 L (351 mm x 236 mm x 157 mm).
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How calibration works
Technical note
- 2025
- English
Understanding the spectral characteristics of your detectors
Technical note
- 202202
- English
Power detectors - overview
Comparison table
- 2025
- English
Understanding your calibration certificate
Technical note
- 202184B
- English
Calibration: For measurements you can count on
Technical note
- English
Same laser, same detector: A measure of repeatability
Technical note
- 2026
- English
Versatile absorber suitable for most applications
Our H absorber offers a spectral response that is both broadband and spectrally flat, making this power detector a versatile solution that can cover most laser power measurement needs. Our proprietary manufacturing method also gives this absorber good damage thresholds, for both average power density and energy density. It has a high absorption capacity and, therefore, generates a relatively low percentage of back reflection.
Customers enjoy:
- Useful for measuring a wide range of lasers
- Low risk of damaging the equipment
- Allows fast rise time
FEATURES
INTUITIVE USER INTERFACE
PROTECTIVE CASING INCLUDED
HANDS-FREE OPERATION
DATA TRANSFER TO PC
Leverage serial commands
Use our serial commands to communicate directly with the meter without using Gentec-EO's software. You can do so using a terminal emulator software, like PuTTY, or you can just integrate them directly into your own software. All essential functions of the meter are covered by a command. Refer to the user manual of the meter for the list of all commands available.
Benefits:
- Build your own software
- Suit your unique laser application requirements
- Automate your measurements
NIST-TRACEABLE CALIBRATION INCLUDED
Traceable calibration provides the ability to trace the readings of laser output measurements to known international measurement standards determined by the National Institute of Standards and Technology (NIST). This ensures that the measurements taken by the instruments are reliable and accurate.
Benefits include:
- Make valid comparisons of measurements taken by other instruments inside and outside your organization and over time
- Comply with regulations or conform to industry standards
- Avoid costly measurement mistakes in your operations
- Improve customer confidence in your laser systems
- Ensure laboratory experiment validity
- Demonstrate measurement accuracy easily with the calibration certificate we provide
Related videos
FAQ
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What is this product used for?
The PRONTO-250 is used to measure laser power quickly with a portable handheld meter. It is designed for mid- to high-power laser checks up to 250 W, especially when the user needs a compact probe with a built-in touchscreen display and data logging. -
What are its key specifications?
Key PRONTO-250 specifications include single-shot power measurement up to 250 W, minimum measurable power of 0.5 W, 19 mm diameter effective aperture, 0.19–20 µm spectral range, 248 nm–2.5 µm calibrated spectral range, 1 mW display resolution, ±3% measurement accuracy, USB data transfer, rechargeable Li-ion battery, and 50,000-point data storage. -
How do I choose this model vs another?
Choose the PRONTO-250 if you need simple single-shot power measurements up to 250 W. Choose a PLUS/FLEX-type model if you need continuous power mode, single-shot energy mode, or additional calibration options. Choose a lower-power PRONTO model if your application does not require the 250 W range. -
What accessories/options are compatible?
Compatible accessories/options include a stand for hands-free optical setup, USB connection for charging and data transfer, PRONTO data-transfer software, and a protective carrying case. A stand is especially useful because the device should be placed on a stable surface or mounted during laser measurements. -
What should I know before buying?
Before buying or installing the PRONTO-250, confirm that your laser power, beam size, wavelength, and measurement mode match the device specifications. The beam should be centered on the absorber, the device should not be held by hand during measurements, and it must be removed from the beam if the HOT warning appears to avoid sensor damage.
