Light Measurement Detectors

ILT detectors are designed to emit low levels of current in the pico-amp to milli-amp range which is then converted to calibrated optical units such as lux, W, W/cm2, etc., when used with ILT light meters. Detector assemblies typically include a sensor, filter, optic and calibration.

Example of a calibrated detector assembly for lux: "SED033/Y/W" includes the “SED033” 33mm² silicon photodiode detector, the “Y” photopic correction filter with the “W” Diffuser and calibration.

(Note: “/U” indicates an uncalibrated sensor).

The SED and SPM type optical detector housings are made of black anodized aluminum, with female filter threads (1¼-24), a tripod mount (¼-20), and two end mounts (#8-32). Only these housings allow for filter selection/swapping and underwater modification. All underwater modified detectors (SUD) require the W wide-eye diffuser in addition to any other filters and come special order in10, 50 or 100 foot lengths.

Part Number/Description Spectral Range Specifications
SCD110/U, ILT1700, ILT2400, ILT5000 Illuminance Probe 400-700 nm,
Photopic
5.8 mm² active area silicon detector with built in CIE VIS response filter in wand style detector housing. Dimensions: 43 x 19 x 15 mm. UNCALIBRATED.
SCD144/U, ILT1700, ILT2400, ILT5000 Bilirubin Phototherapy Probe 422-488 nm,
450 nm peak
5.8 mm² active area silicon detector with built in filter in wand style detector housing. Dimensions: 43 x 19 x 15 mm. UNCALIBRATED.
SCD145/U, ILT1700, ILT2400, ILT5000 Phototherapy Probe 360-525 nm,
450 nm peak
5.8 mm² active area silicon detector with built in filter in wand style detector housing. Dimensions: 43 x 19 x 15 mm. UNCALIBRATED.
SED005/U, ILT1700, ILT2400, ILT5000 UV-Visible GaAsP Detector 250-675 nm,
610 nm peak
5.2 mm² detector with quartz window. Dimensions: 29 x 42 mm dia. UNCALIBRATED.
SUD005/U, Underwater version   Example of an ILT Underwater Detector - SUD033/U
SED007/U, ILT1700, ILT2400, ILT5000 IR InGaAs Detector 850-1700 nm,
1455 nm peak
7 mm² detector with spectral range from 850-1700nm. Dimensions: 29 x 42 mm dia. UNCALIBRATED.
SUD007/U, Underwater version   Example of an ILT Underwater Detector - SUD033/U
SED033/U, ILT1700, ILT2400, ILT5000 Broadband Silicon Detector 200-1100 nm,
950 nm peak
33 mm² silicon detector with quartz window. Dimensions: 29 x 42 mm dia. UNCALIBRATED.
SUD033/U, underwater version   Example of an ILT Underwater Detector - SUD033/U
SED100/U, ILT1700, ILT2400, ILT5000 Broadband Silicon Detector 200-1100 nm,
950 nm peak
100 mm² (1 cm2) silicon detector with quartz window. Dimensions: 29 x 42 mm dia. UNCALIBRATED.
SUD100/U, underwater version   Example of an ILT Underwater Detector - SUD033/U
SED185/U, ILT1700, ILT2400, ILT5000 Gold Cathode Detector 160-240 nm,
185 nm peak
50 mm² active area Au Cathode Vacuum photodiode with quartz window (visible blocking). Good stability in high ozone / UV environment. Dimensions: 61 x 42 mm dia. UNCALIBRATED.
SED220/U, ILT1700, ILT2400, ILT5000 Solar Blind Detector 160-320 nm,
220 nm peak
50 mm² active area Vacuum photodiode with fused silica window (visible blocking). Dimensions: 53 x 42 mm dia. UNCALIBRATED.
SUD220/U, underwater version   Example of an ILT Underwater Detector - SUD033/U
SED240/U, ILT1700, ILT2400, ILT5000 Solar Blind Detector 185-320 nm,
240 nm peak
50 mm² active area Vacuum photodiode with quartz window (visible blocking). Dimensions: 61 x 42 mm dia. UNCALIBRATED.
SUD240/U, underwater version   Example of an ILT Underwater Detector - SUD033/U
SED254/U, ILT1700, ILT2400, ILT5000 Narrow Band UVC Detector 249-259 nm,
254 nm peak
3.6 mm² active area narrow band (254 nm filtered diode). Dimensions: 29 x 42 mm dia. UNCALIBRATED.
SUD254/U, underwater version   Example of an ILT Underwater Detector - SUD033/U
SED270/U, ILT1700, ILT2400, ILT5000 SiC UV Detector 215-355 nm,
265-270 nm peak
2 mm² active area SiC photodiode (visible blocking). Dimensions: 29 x 42 mm dia. UNCALIBRATED.
SUD270/U, underwater version   Example of an ILT Underwater Detector - SUD033/U
SED623/U, ILT1700, ILT2400, ILT5000 Thermopile Detector 200-4200 nm,
flat > 700 nm
4 mm² thermopile detector with quartz window. Dimensions: 69 x 42 mm dia. UNCALIBRATED.
SED624/U, ILT1700, ILT2400, ILT5000 Thermopile Detector 0.2-40 micron,
flat > 1.0 micron
4 mm² thermopile detector with KBr window. Dimensions: 69 x 42 mm dia. UNCALIBRATED.
SPD025F/U, ILT1700, ILT2400, ILT5000 Radiance Pen Probe 400-1064 nm Flat 1.2 mm² silicon detector in pen-like housing with radiance optics and built in filter. Dimensions: 92 mm x 21 mm dia. UNCALIBRATED
SPD025Y/U, ILT1700, ILT2400, ILT5000 Contact Luminance Pen Probe 400-700 nm Photopic 1.2 mm² silicon detector in pen-like housing with luminance optics and built in filter. Dimensions: 92 mm x 21 mm dia. UNCALIBRATED
SPM068, ILT1700, ILT2400, ILT5000 Photomultiplier Detector 230 - 700 nm,
400 nm peak
Switchable-gain UV Enhanced photomultiplier detector with self-contained power supply and expanded spectral range (for 2016). Dimensions: 100 mm x 42 mm dia. UNCALIBRATED.
SPM068_01, ILT1700, ILT2400, ILT5000 Photomultiplier Detector 230 - 870 nm,
400 nm peak
Switchable-gain UV Enhanced photomultiplier detector with self-contained power supply and expanded spectral range (for 2016). Dimensions: 100 mm x 42 mm dia. UNCALIBRATED.
SSD001/U, ILT1700, ILT2400, ILT5000 Slin UV Probe 260-400 nm nm,
370 nm peak
0.64 mm2 silicon detector with built-in UV filter,built-in ultra thin ND filter. 31 x 41 x 4.3 mm. UNCALIBRATED
XSD140 Low profile UV sensor series Varies by filter selection The XSD140 sensors include a 2.4x2.8 silicon sensor with sensitivity over the range for 320 to 730 nm. Standard filtered versions available for UV LED/UV curing, germicidal and photoresist/lithography for UV measurements.