ULP S2 Ultra-High Sensitivity Sensor


Designed for tests of very weak LEDs with a minimum value of 0.01 mcd and very low-lit switches, controls and status indicators for night displays in automotive interiors. It is recommended to use Wide Aperture Fiber-Optic Probes with Contacting Tips.


Typical response time

  • T < 100ms

On / Off answer

  • Tests the On/Off status of any LED colour
  • Supplies a logic "1" (5V) only when the LED is lit and a logic "0" (0V) when the LED is off.
  • The sensor is 'colourblind' and reacts to all colours
  • Provides the simplest and fastest 1-bit digital interface to the test bench

Output impedance (for intensity and colour)

  • 20mA max. (Source/Sink)
  • Non-inductive


  • Ultra-high Sensitivity Sensors do not provide intensity output
  • The sensor reacts to a large dynamic range
  • Suitable for SMD LEDs of at least 0.01 mcd

Available products

OPT-ULP-S2 UHS Ultra-High Sensitivity Probe