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Reed Instruments - Test and Measurement Equipment


REED R8100SD Datalogging Light Meter w/ Temperature

Real-time data logger with integrated SD memory card measures/records ambient light levels in Foot Candles or Lux and contact temperature with optional type J/K thermocouple probe.

The R8100SD has a wide measurement range up to 100,000 Lux (10,000 Foot-candles) and features Data hold, Max/Min functions, and an easy-to-read backlit LCD display.

Using a SD card (max 16GB), a user can manually record up to 99 readings or automatically by selecting a desired sampling rate from 1 to 3600 seconds. Quickly generate an Excel file with raw data, all without the use of software.

Optional accessories include a tripod and AC adapter for continuous long-term monitoring.

 Features:     (Replaced Model SD1128)

  • Measures ambient light levels in Foot-candles or Lux
  • Photo diode and colour correction filters meet C.I.E. spectrum specifications
  • Contact temperature measurement with a type J/K thermocouple (optional)
  • Temperature is measured in C or F
  • Real-time data logger with optional SD memory card
  • User selectable sampling rate from 1 to 3600 seconds
  • Easy-to-read backlit LCD display
  • Data hold and Min/Max functions
  • Tripod mountable for long-term monitoring
  • Low battery indicator and auto shut off
  • R8100SD Includes: Data Logging Light Meter, Detachable Light Sensor, Sensor Cover, Batteries & Soft Carrying Case
  • NIST Traceable Certification Available
  • R8100SD-KIT Includes: R8100SD Items plus 16GB Micro SD Memory Card & AC Adapter.


  • Measuring Range: 2,000, 20,000, 100,000 lux
    (200, 2,000, 10,000 Ft-cd)
  • Resolution: 1, 10, 100 lux (0.1, 1, 10 Ft-cd)
  • Accuracy: Lux ±(4% + 2 dgt)
  • Type K Temp.Range: -100.0 to 1300.0°C (-148.0 to 2372°F)
    Resolution: 0.1°C/°F
    Accuracy: ±(0.4% +1.8°F)
  • Type J Temp.Range: -100.0 to 1200.0°C (-148.0 to 2192°F)
    Resolution: 0.1°C/°F
    Accuracy: ±(0.4% +1.8°F)
  • Auto Sampling Time: 1, 2, 5, 10, 30, 60, 120, 300, 600, 1800, 3600 seconds
  • Memory Card: SD memory card, (Optional) Up to 16 GB
  • Power Supply: 6 x AA batteries or Optional AC Adapter
  • more >> Spec Sheet (PDF)

REED R8100SD Datalogging Light Meter w/ Temperature

R8100SD-KIT Includes: R8100SD Items plus 16GB Micro SD Memory Card & AC Adapter.


NIST Traceable Certification Available

NIST Traceable Certification Available - (Optional)

Note: NIST Certification may delay shipment by 1 - 3 Days

Orders over $300 ship FREE to 48 States


R8100SD Datalogging Light Meter


REED R8100SD Light Meter Datalogger

R8100SD Datalogging Light Meter w/ NIST


REED R8100SD Datalogging Light Meter w/NIST

R8100SD Datalogging Light Meter Kit


R8100SD-KIT Datalogging Light Meter Kit

R1500 Tripod w/Instrument Adapter


R1500 Tripod w/Instrument Adapter

Orders over $300 ship FREE to 48 States

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REED R1630 Bluetooth Light Meter
REED R4700SD Environment Meter Datalogger
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*  *  *  *  *  *  *

REED R8100SD Datalogging Light Meter w/NIST
R8100SD Light Meter
Datalogger w/Temp
REED R8130 Compact Light Meter
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 400,000 lux
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R8140 LED Light Meter

*  *  *  *  *  *  *

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