CEM DT-1308 Digital Light Meter

Measure Light Levels from Low Illumination to 400,000 Lux

The CEM DT-1308 Digital Light Meter provides illuminance measurement across a wide range of lighting conditions, with a maximum measurement range of 400,000 lux. Readings can be displayed in either lux or foot-candles (FC), making the instrument suitable for lighting assessment, installation, inspection and maintenance applications.

A separate silicon photodiode detector can be positioned at the actual measurement point while the display remains easy to read. Automatic ranging, Peak Hold, Relative mode and Data Hold provide additional flexibility when comparing and recording light levels.

Measure Up to 400,000 Lux

The DT-1308 measures illuminance up to 400,000 lux, allowing the same instrument to be used across a broad range of indoor and high-level lighting conditions.

Switch Between Lux and Foot-Candles

Measurements can be displayed in either lux or foot-candles (FC), allowing the instrument to work with the lighting unit required for the application.

Automatic Range Selection

The DT-1308 features automatic ranging, reducing the need to manually select a measurement range as light levels change.

Separate Silicon Photodiode Sensor

The external photo detector uses a long-life silicon photodiode. Its separate design allows the sensor to be positioned horizontally at the required measurement location while the meter remains accessible to the operator.

Peak Hold for Changing Light Levels

The Peak Hold function captures peak light level readings, providing a practical way to observe short-term changes in illumination.

Relative Mode for Comparing Light Levels

Relative measurement mode makes it easier to compare illumination at different positions or against a reference reading, useful when assessing lighting distribution across a working area.

MAX and Data Hold Functions

MAX Hold can be used to retain the highest measured value, while Data Hold freezes the current reading on the display for easier viewing or recording.

Digital Display with Analogue Bargraph

The 4000-count LCD is complemented by a 41-segment analogue bargraph, providing both a numerical reading and a visual indication of changing light levels.

Key Features

• Digital light meter for illuminance measurement
• Measures up to 400,000 lux
• Measures up to 40,000 foot-candles
• Selectable Lux and FC units
• Automatic ranging
• 4000-count LCD display
• 41-segment analogue bargraph
• Peak Hold function
• Relative measurement mode
• MAX Hold
• Data Hold
• Automatic power-off
• Low battery indication
• Long-life silicon photodiode sensor
• Measurement rate of 1.5 times per second

Technical Specifications

Model	CEM DT-1308
Product Type	Digital Light Meter
Measurement	Illuminance
Maximum Lux Range	400,000 lux
Maximum Foot-Candle Range	40,000 FC
Maximum Resolution	0.1 lux / FC
Accuracy below 10,000 lux	±5% ±10 digits
Accuracy above 10,000 lux	±10% ±10 digits
Display	4000-count LCD
Analogue Bargraph	41 segments
Range Selection	Automatic
Units	Lux / Foot-Candle (FC)
Peak Hold	Yes
Relative Mode	Yes
MAX Hold	Yes
Data Hold	Yes
Measurement Rate	1.5 times per second
Sensor Type	Silicon photodiode
Photo Detector Dimensions	115 × 60 × 27 mm
Auto Power-Off	Yes
Low Battery Indication	Yes
Power Supply	1 × 9V battery

Typical Applications

• Workplace lighting assessment
• Office and commercial lighting
• Lighting installation and maintenance
• Warehouses and production areas
• Schools and public buildings
• Photography and studio lighting assessment
• Indoor environmental measurements
• General illuminance testing

What’s Included?

• CEM DT-1308 Digital Light Meter
• Photo Detector
• 9V Battery
• Carrying Case

Explore our complete range of light meters for illuminance measurement, lighting inspection and environmental testing.