Lux Light Meter - 400,000 lx - external light sensor

Item number: EX10030411 / Model: SBS-LM-400C

Lux Light Meter - 400,000 lx - external light sensor

  • Item number: EX10030411
  • Model: SBS-LM-400C
  • In the product range since: 2019

Prices incl. VAT Shipping costs abroad not included*

Ready to ship today, Delivery time appr. 4-6 workdays**

Lux Light Meter - 400,000 lx - external light sensor

The intensity and distribution of light have a major influence in a wide variety of areas. With the lux light meter SBS-LM-400C, you can perform precise luminosity measurements both indoors and out. The light meter consists of a photodetector whose spectral sensitivity is attuned to that of the human eye. The external sensor can be positioned to meet your needs. When fully stretched out, the cable is approx. 2.1 m long. You can use light to influence performance and safety in the workplace. Light conditions are also important when it comes to eliciting the best visual impressions for selling products. Thanks to the instrument's large measurement range of up to 400,000 lx, you can even use it for optimally adjusting the lighting in operating theatres. The measuring equipment from Steinberg Systems enhances the work and lives of professionals in the film industry, trade and in the private sector.

Optimum lighting conditions with the lux light meter from Steinberg Systems


With its high precision and fast measurement rate of twice per second, the lux light meter SBS-LM-400C delivers precise results immediately. You can set the digital lux meter to display the measured values in lx (lux) or fc (foot-candles). The measurement results are displayed on a 4-digit LCD screen with background lighting and even include the date of recording. The display can be read even from awkward angles.


In addition to the display for range excess, the digital light meter also has a HOLD function which is used to freeze the values currently displayed on the screen. The light meter can even read the temperature in real time and allows you to switch the temperature units between °C and °F. The minimum and maximum value memory enables you to display the minimum or maximum light values in measurement mode.


The light meter comes with a 9 V battery which guarantees up to 30 hours of operation. The battery status indicator keeps you informed about the current battery life. The lux light meter is also equipped with an automatic shut-off which switches off the device after 15 minutes of inactivity. The automatic shut-off feature can be deactivated.


  • Large measurement range - up to 400,000 lux
  • 4-digit colour LCD display with background lighting - measurement values are easy to read at any time of day
  • Battery-powered - up to 30 hrs of operation
  • Selectable units of measure - lux (lx) and foot-candle (fc)
  • High precision and fast measurement rate

Key Facts

Item number
9 V battery (6F22 PP3)
Operating time
Up to 30 hrs
Measurement range lx (lux)
0 to 400,000
Measurement range fc (foot-candles)
0 to 40,000
Basic accuracy
3 % rdg ±8 d (< 10,000 lx) /
4 % rdg ±10 d (> 10,000 lx)
Measurement rate
2x per second
LCD colour display with background lighting
Spectral sensitivity
CIE photopic
Spectral accuracy
CIE V λ function (f1'≦6 %, f2'≦ 2 %)
Automatic switch-off
Over-range indication
Photo detector
Silicon photo diode with spectral response
Operating temperature
-20 to +60 °C
Operating humidity
+10 to +90 % rH
Ambient temperature
-20 to +60 °C
Storage humidity
+10 to +75 % rH
PC connection interface
Length, external light sensor cable
2.1 m
Dimensions (LxWxH)
15.5 x 6 x 3 cm
0.27 kg
Shipping dimensions (LxWxH)
21 x 20 x 6.5 cm
Shipping weight
0.55 kg

How many lux are appropriate for illuminating a particular space, say, my living room?

Your living room should have approx. 77 lux. Recommended lux for other spaces: 45 lux in bedrooms, 110 lux in bathrooms, between 700 and 1,500 lux in offices, and approx. 160,000 lux in operating theatres.

  • Lux light meter SBS-LM-400C
  • 9 V battery
  • Instruction manual
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Reviews from Ing Jiří Hájek (18 Dec 2019)
Reviews from Ing Jiří Hájek (18 Dec 2019) Luxmetr - certifikát přesnosti měření

Mám dotaz - má nabízený luxmetr certifikát o přesnosti který na mě při měření požaduje hygienik ?