ILT5000 Lab Radiometer for Measuring Low Intensity, Ozone Producing Germicidal Lamps at 185 nm

Benchtop Power (watt) measurement system

ILT5000, SED185/NS185

Part Number: ILT5000, SED185/NS185 CA

Benchtop Power (Watt) Measurement System

  • 10+ Decade Dynamic Range of Optical Analysis
  • Pico-ammeter: 10fA to 1mA (calibrated from 100fA - 1mA)
  • Wireless Communication, Built-in
  • User controlled or Auto: Range, Zero/Dark, Sample Rate
  • 4-20 mA Output
  • 15 pin D Sub and SMA sensor/input ports
  • “Set it & Forget It” Remote Data Logging
  • Power: USB or Built-in Re-Chargeable Battery Pack
  • Multi-System Simultaneous Continuous Monitoring
  • Includes DataLight II Software and Labview Sample Code
  • NIST-Traceable/ISO17025 Accredited Calibration
  • Sample Rate Up to 100 Hz, Programmable
  • Made in the USA
  • Custom & OEM Inquiries Welcome

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SED SEL 185 185NS Response Curve


Configured to measure low intensity, ozone producing germicidal lamps at 185 nm where out of band rejection of 254 nm is critical.

Measurement Range: 4.76e-7 to 4.76e-1 Watts/cm2
Spectral Range: 165 – 200 nm, Center wavelength: 185 nm

Dimensions: 58 mm x 42 mm diameter

Order part number: ILT5000 (meter), SED185/NS185 (detector)

Applications: 50 mm² active area Au Cathode Vacuum photodiode with quartz window and custom narrow band 185 filter allows measurement of the low emissions at 185 nm from ozone producing mercury lamps while blocking stray light from stronger emissions at the 254 nm mercury line.


SED SEL 185 Detector













Note:  For simultaneous multi-sensor data logging, ILT also offers the ILT6000 Rack-Mount Radiometer System with the same specifications as the ILT5000 in a 2-10 unit, rack mountable housing



ILT6000 Rack Mount Radiometer

For the latest meter specifications, data sheet, installation guide, tech notes and software, visit the ILT5000 page here.