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 in 10, 50 or 100 foot lengths.

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The below four versions do not have removable, swappable filters and cannot be made waterproof:

The SCD type optical detectors are in a 42 x 19 x 14 mm housing.

The XSD type optical detectors are in a 15 x 42 mm dia. housing with 8-32 thread tapped hole for mounting.

SPD type detectors are in a 121 x 19 mm dia. pen style housing.

Part Number/Description	Spectral Range	Specifications
SCD110/U, ILT2400, ILT2500, ILT5000, ILT6000 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, ILT2400, ILT2500, ILT5000, ILT6000 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, ILT2400, ILT2500, ILT5000, ILT6000 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, ILT2400, ILT2500, ILT5000, ILT6000 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, ILT2400, ILT2500, ILT5000, ILT5000, ILT6000 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, ILT2400, ILT2500, ILT5000, ILT6000 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, ILT2400, ILT2500, ILT5000, ILT6000 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, ILT2400, ILT2500, ILT5000, ILT6000 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, ILT2400, ILT2500, ILT5000, ILT6000 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, ILT2400, ILT2500, ILT5000, ILT6000 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, ILT2400, ILT2500, ILT5000, ILT6000 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, ILT2400, ILT2500, ILT5000, ILT6000 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
SED270C/U, ILT2400, ILT2500, ILT5000, ILT6000 SiC UV Detector	230-280 nm 265 nm peak	2 mm² active area UVC filtered SiC (photodiode) visible blocking. Dimensions: 29 x 42 mm dia. UNCALIBRATED.
SUD270C/U, underwater version		Example of ILT Underwater Detector - SUD033/U
SED270B/U, ILT2400, ILT2500, ILT5000, ILT6000 SiC UVB Detector	265-325 nm 300-305 nm peak	2 mm² active area SiC photodiode with internal UVB filter. Dimensions: 29 x 42 mm dia. UNCALIBRATED
SED623/U, ILT2400, ILT2500, ILT5000, ILT6000 Thermopile Detector	200-4200 nm, flat > 700 nm	4 mm² thermopile detector with quartz window. Dimensions: 69 x 42 mm dia. UNCALIBRATED.
SED624/U, ILT2400, ILT2500, ILT5000, ILT6000 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, ILT2400, ILT2500, ILT5000, ILT6000 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, ILT2400, ILT2500, ILT5000, ILT6000 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, ILT2400, ILT2500, ILT5000, ILT6000 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, ILT2400, ILT2500, ILT5000, ILT6000 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.
XCB270 Low profile	Varies by filter selection	The XCB270 sensors include a low profile housing 15 mm x 42 mm dia, a diffuser and a dureable SiC silicon carbide sensor . Standard versions available for UV 200-360nm, UVC 220-280nm, UVB 275-320nm, UVBC 220-320 nm. (For use with ILT770 meters)
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.
XSD270 Low profile SiC UV sensor series	Varies by filter selection	The XSD270 sensors include a low profile housing 15 mm x 42 mm dia, a diffuser and a dureable SiC silicon carbide sensor . Standard versions available for UV 200-360nm, UVC 220-280nm, UVB 275-320nm, UVBC 220-320 nm.
MPPUVA Mini Pen Probe sensor series for ILT2400, ILT2500, ILT6000	315-390 nm	5.76 mm² Si detector with built in UVA filter, Teflon Diffuser, and 8 mm aperture in a compact Mini Pen Probe housing.
MPPNBB Mini Pen Probe sensor series for ILT2400, ILT2500, ILT5000, ILT6000	290-330 nm	5.2 mm²GaAsp detector with built in narrow band UVB filter with center wavelength 310-313 nm, Teflon diffuser and 8mm aperture in a compact Mini Pen Probe housing.
MPPUVB Mini Pen Probe sensor series for ILT2400, ILT2500, ILT5000, ILT6000	265-320 nm	2 mm²SiC detector with built in UVB filter, Teflon diffuser and 8mm aperture in a compact Mini Pen Probe housing.

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