Laser Energy Meter (RoHS)

Key Features:

  • Large, bright, backlit LCD display
  • Digital accuracy with analog-like movement for laser tuning
  • Works with pyroelectric sensors only (Windows XP required)
  • Measures pulse energy up to 300 pps (captures every pulse)
  • USB computer interface with complete host control capability
  • Analog output with selectable full-scale voltage (1,2, and 5V)
  • Rechargeable battery included
  • RoHS Compliant


Part Name Description
1098581 FieldMaxII-P Laser energy meter (RoHS compliant)

The FieldMaxII-P laser energy meter functions with a broad range of pyroelectric sensors. These sensors enable FieldMaxII-P to measure UV, visible, and IR laser output of pulsed lasers with repetition rates of up to 300 Hz.

The updated FieldMaxII-P (RoHS)system features an enhanced PC applications software package that provides live simultaneous monitoring and control of multiple meters from a single host computer. This software provides a quick and easy way to use your PC to monitor live data and statistics, log data to a file, plot the data in trend and histogram charts, and tune lasers with a simulated analog needle.

The meter also contains an analog output and rechargeable battery. This combination of features makes FieldMaxII-P the most powerful and versatile laser meter in its price range.

More Information

This general-purpose laser energy meter is designed to accommodate a broad range of users, including developers, production testers, service engineers and general scientific users. Field service applications will benefit from the meter’s small size, rechargeable battery pack, and responsive tuning indicator for peaking laser output. For general laboratory use, the FieldMaxII offers versatility, accuracy, and easy access to statistics and features, such as wavelength compensation and attenuation correction.

The rechargeable battery pack is recharged through an internal charger in the FieldMaxII unit. This internal charger is powered by the FieldMaxII AC adapter. Whenever the AC adapter is in use, the battery pack is being charged.

FieldMaxII incorporates what is known as a “smart charge” circuitry. This circuitry measures the condition of the battery pack and decides if it should be fast charged, top-off charged, or trickle charged. This capability keeps the battery pack from being damaged by overcharging and speeds the process of recharging when the battery is drained.

The meter can also be powered by six standard AA batteries

Max. Measurable Energy (with pyroelectric sensor) 300.0J
Min. Measurable Energy (with pyroelectric sensor) 1 nJ
Displayable Full-Scale Energy Range (with pyroelectric sensor) 3.000 nJ to 300.0J (manual ranging)
Measurement Resolution 0.1% of full scale
Max. Rep. Rate (pulsed energy measurement) 300 Hz (every pulse)
Accuracy - Digital Meter ±1.0% of reading
Accuracy - System Meter accuracy + sensor accuracy


This current version of the Setup file contains updated and improved 32-bit and 64-bit Windows XP and Windows 7 drives. This update includes:

  • Improved compatibility with National Instruments LabView in 64-bit environments
  • Faster FieldMax PC application startup within Windows 7
  • Several bug fixes including an auto-range timeout error that affected some customers using remote PC control

Drawing Packages
Click the links below to download a complete drawing package for these products.

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