Return Material Authorization
Need to return light measurement instrumentation for calibration or repair? Fill out this form to automatically receive a Return Authorization number to place on box prior to return shipping.
Calibration Services
Detailed list of calibration services offered by ILT.
  • Calibration Sales Terms & Conditions
    Please carefully review all of the terms and conditions of light measurement instrumentation calibration/service orders prior to return shipment of equipment.
Equipment Rentals
Need to RENT an ILT Light Detection/Measurement System for a short time? Fill out and fax our Rental Agreement and a customer service representative will contact you within 24 hours.
Request a Quote
Need price and availability information about an ILT product or service? Fill out this form online and a customer service representative will contact you within 24 hours.
Spectroradiometer Inquiry Form
Interested in our ILT950 USB Portable Spectroradiometer? Fill out this form online to have your application reviewed by an engineer to tailor a system to suit your needs.
Light Measurement Handbook
Handy free reference detailing the basic principals of light and light measurement. Currently not in print - PDF only.
Downloadable PDF version of the Credit Application Form to fax or mail to ILT.
Return Policy
All ILT orders are NCNR (Non cancellable and Non returnable).
Troubleshooting Guide
Troubleshooting your Light Measuring System.
Terms and Conditions of Sale
Please review the terms and conditions of sale for all ILT products.
LED Sign Module Warranty Registration
Please carefully complete all required fields on the LED Sign Module Limited Warranty Registration form.