Brightness / twilight sensor

The brightness / twilight sensor is used to detect very low light levels, for example, in the field at dusk, in the workplace or in darkened laboratories.

The twilight sensor is approximated with one of the V (λ) curve detector equipped, then, is the light sensitivity of the human eye adapted.

Our brightness / twilight sensors are optimized for use with data loggers and control systems.

The following measuring ranges are measurable with the twilight sensor:

• 0 to 50 lux
• 0 to 100 lux
• 0 to 500 lux
• 0 to 2000 Lux
• 0 to 5000 Lux

The output of the integrated measuring amplifier is varied adaptable.

The following linear outputs are possible through integrated amplifier:

• 0..10 V
• 0..1 V
• 9..5 V
• 4..20 mA
• 0..10 mA
• other versions available on request

The following supply voltages are possible:

• 5V DC
• 12V DC
• 24V DC
• 24V AC

In addition, we offer the following options:

• integrated measuring amplifier (voltage or current output)
• 3-Punktjustageplatten with bubble for leveling
• Backplates for easy installation on narrow or round surfaces
• High temperature version
• Underwater versions
• very fast sensors
• Output limit