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Extech SDL470 UVA/UAC Datalogging Light Meter

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£789.54 £657.95
Lead Time: 1-6 Days Free UK Delivery* Delivery Options

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The Extech SDL470 is an ultraviolet light meter supplied with two probes: one UVA probe for capturing long-wave 365nm UV irradiance measurements under a UVA (black light) source and one UVC probe for capturing shot-wave 254nm UV irradiance measurements under a UVC light source.

This meter is ideal for a wide variety of light measurement applications including monitoring blue light radiation from welding equipent, UV sterilisation, graphic arts, photochemical matching, UV EPROM erasure, photo-resist exposure, ink curing, adhesives and coatings.

A datalogging light meter, the SDL470 is perfectly suited for logging how light measurements change over a period of time. It's supplied as standard with an SD card for storage and can store data at an adjustable rate from 1 to 3600 seconds. All data is saved directly onto MS Excel format, making transferring, storing and analysis on the PC as easy as possible.

Extech's SDL470 also includes several additional features including the ability to measure temperature using a type K/J thermocouple (sold separately), a large backlit LCD display, MIN/MAX readings and a data hold function which temporarily stores the current value on the screen.

Extech SDL470 UVA/UVC Datalogging Light Meter Key Features

  • Dual purpose meter suitable for UVA and UVC light measurements
  • Long-wave 365nm ultra-violet irradiance measurements (UVA)
  • Short-wave 254nm ultra-violet irradiance measurements (UVC)
  • Two ranges: 2mw/cm^2 and 20mW/cm^2
  • Includes two probes, one for UVA and one for UVC
  • UV sensor with cosine correction filter
  • UV zero function
  • Microprocessor circuit provides high reliability and durability
  • Type K/type J thermocouple thermometer (probes not included)
  • Real-time SD memory card datalogger with built-in calendar clock and real-time data recording
  • Selectable sampling time (rate) from 1 second to 3600 seconds
  • Manual datalogging (set sampling rate to 0)
  • SD card for easy transfer to PC in Excel format
  • LCD screen with green backlight
  • Auto power off/manual power off
  • Data hold function
  • Record MAX/MIN readings
  • Powered by 6 x AA (1.5V) batteries or DC 9V adaptor
  • RS232/USB PC interface

What's Included?

  • Extech SDL470 UVA/UAC Light Meter
  • SD Memory Card
  • UVA Light Sensor and Protective Cover
  • UVC Light Sensor
  • Hard Case
  • Universal AC Adaptor
  • 6 x AA Batteries
Accessories related to this product:
Part CodeSDL470

Extech SDL470 Technical Specifications

SpecificationsRangeMax ResolutionBasic Accuracy
UVA Range 2mW/cm², 20mW/cm² 0.001mW/cm² ±4% FS
UVC Range 2mW/cm², 20mW/cm² 0.001mW/cm² ±4% FS
Frequency Bandwidth 365nm (UVA); 254nm (UVC)    
Type K Temperature -148 to 2372°F (-100 to 1300°C) 0.1°F/°C ±(0.4%±1.8°F/1°C)
Type J Temperature -148 to 2192°F (-100 to 1200°C) 0.1°F/°C ±(0.4%±1.8°F/1°C)
Memory Datalog readings on SD card (included)    
Dimensions 7.2 x 2.9 x 1.9 (182 x 72 x 47.5mm)    
Weight 16.2oz (475g)    
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