Brightness Meters | McMaster-Carr

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16 Products

Light Meters

Measure light quality and intensity with these meters. They’re CE marked, so they meet European safety standards. They should not be used with lasers.

These meters measure brightness in footcandles and lux. One footcandle is one lumen per square foot. One lux is one lumen per square meter.

Use the data hold function to freeze a measurement on the screen, giving you time to write it down. Some meters also have an analog output, which transmits data to a recorder. Meters with minimum/maximum memory let you save and retrieve the high and low measurements you’ve taken. Meters that include an SD card store timestamped readings in Excel format for logging data and transferring it to a PC.

All of these meters measure general lighting. Style A meters measure white LED light. Style B meters measure colored LED light. Style C-E meters measure general lighting only—they are not for use with LED lights.

Style A

		Light Measurement Range
For Light Technology	For LED Color	Footcandles	Lux	Accuracy	Batteries Included	Features	Includes		Each
Meters
LED, CFL, Fluorescent, Halogen, Incandescent, Metal Halide, High-Pressure Sodium, Mercury Vapor	White	0-40,000	0-400,000	±3%	Yes	Auto Power Off, Data Hold, Min./Max. Memory	Protective Pouch	00000000	0000000
Meters with Calibration Certificate
LED, CFL, Fluorescent, Halogen, Incandescent, Metal Halide, High-Pressure Sodium, Mercury Vapor	White	0-40,000	0-400,000	±3%	Yes	Auto Power Off, Data Hold, Min./Max. Memory	Protective Pouch	00000000	000000

Style B

		Light Measurement Range
For Light Technology	For LED Color	Footcandles	Lux	Accuracy	Light Sensor Cable Lg., ft.	Batteries Included	Features	Includes		Each
Meters
LED, CFL, Fluorescent, Halogen, Incandescent, Metal Halide, High-Pressure Sodium, Mercury Vapor	Blue, Green, Red, White, Yellow	0-40,000	0-400,000	±3%	5	Yes	Auto Power Off, Data Hold, Min./Max. Memory, Storage for up to 99 readings	Case	00000000	0000000
Meters with Calibration Certificate
LED, CFL, Fluorescent, Halogen, Incandescent, Metal Halide, High-Pressure Sodium, Mercury Vapor	Blue, Green, Red, White, Yellow	0-40,000	0-400,000	±3%	5	Yes	Auto Power Off, Data Hold, Min./Max. Memory, Storage for up to 99 readings	Case	000000000	000000

Style C

	Light Measurement Range
For Light Technology	Footcandles	Lux	Accuracy	Light Sensor Cable Lg., ft.	Output Type	Batteries Included	Features		Each
Meters
CFL, Fluorescent, Halogen, Incandescent, Metal Halide, High-Pressure Sodium, Mercury Vapor	0-5,000	0-50,000	±5%	3	Analog	Yes	Auto Power Off, Data Hold	00000000	0000000
Meters with Calibration Certificate
CFL, Fluorescent, Halogen, Incandescent, Metal Halide, High-Pressure Sodium, Mercury Vapor	0-5,000	0-50,000	±5%	3	Analog	Yes	Auto Power Off, Data Hold	00000000	000000

Protective Pouches for Style C

		Each
	00000000	000000

Style D

	Light Measurement Range
For Light Technology	Footcandles	Lux	Accuracy	Light Sensor Cable Lg., ft.	Batteries Included	Features	Includes		Each
Meters
CFL, Fluorescent, Halogen, Incandescent, Metal Halide	0-10,000	0-100,000	±4%	3	Yes	Auto Power Off, Data Hold, Min./Max. Memory, Storage for up to 99 readings	2 GB Standard SD Card, Case	000000000	0000000
Meters with Calibration Certificate
CFL, Fluorescent, Halogen, Incandescent, Metal Halide	0-10,000	0-100,000	±4%	3	Yes	Auto Power Off, Data Hold, Min./Max. Memory, Storage for up to 99 readings	2 GB Standard SD Card, Case	000000000	000000

Style E

	Light Measurement Range
For Light Technology	Footcandles	Lux	Accuracy	Light Sensor Cable Lg., ft.	Batteries Included	Features	Includes		Each
Meters
Fluorescent, Incandescent, Metal Halide, Mercury Vapor	0-40,000	0-400,000	±5%	2	Yes	Data Hold, Min./Max. Memory	Case, Protective Pouch	000000000	0000000
Meters with Calibration Certificate
Fluorescent, Incandescent, Metal Halide, Mercury Vapor	0-40,000	0-400,000	±5%	2	Yes	Data Hold, Min./Max. Memory	Case, Protective Pouch	000000000	000000

Gloss Meters

Confirm that each product is as shiny as the last. These meters measure the gloss of paint and coatings as well as metal, ceramic, and granite surfaces. All come with a USB cord to transfer data to PCs.

Meters with a 60° field of view can evaluate the gloss of most standard, semi-gloss surfaces.

Meters with a 20°, 60°, and 85° field of view can evaluate low-gloss/matte and high-gloss surfaces in addition to semi-gloss surfaces—their gloss measuring range is 10 times as broad as meters with only a 60° field of view. They’re compatible with a free app that lets you use your Android device to start and stop recording and send data using Bluetooth.

These meters come with a calibration block, and you should calibrate them before each reading. Lay the block on a flat surface and press the calibration button on your meter. Position the meter on top of the block, and your meter will calibrate.

								Sensing Area
Measuring Range	Measuring Increments	Accuracy	Repeatability	Field of View	Ht.	Wd.	Dp.	Lg., mm	Wd., mm	Data Connection Type	Operating System Compatibility	Batteries Included	Battery Type	Includes		Each
For Use On Ceramic, Metal, Paper, Plastic, Stone, Wood
0-200 GU	0.1 GU	±1.5%	0.2%	60°	5 1/2"	3"	1 1/2"	20	10	USB-C	Windows 7 or Later	Yes	Rechargeable	3 ft. Long USB Cord, AC Adapter, Calibration Block, Microfiber Cloth	0000000	0000000
0-2,000 GU	1 GU	±1.5%	0.2%	20°, 60°, 85°	6"	3"	2"	39	9	Bluetooth, Mini USB-B	Android 4.2 or Later, Windows 7 or Later	Yes	Disposable	3 ft. Long USB Cord, Calibration Block	0000000	00000000

Light Monitors

Continuously monitor light quality, intensity, and density in light-sensitive environments, such as photo labs and pharmaceutical manufacturing facilities. While light meters spot-measure intensity in a specific area, these monitors give you detailed readings for an extended period. They combine a light sensor, transmitter, and digital display unit. Configurable alarm outputs notify you when light levels are outside of a set range. These monitors are IP rated for protection against dust and splashing water.

A 5 ft. cable lets you keep your display visible while you check light levels in dim or hard-to-reach areas. You can mount the digital display to your wall for easy viewing with the included fasteners. If you want to mount the transmitter to a wall or onto DIN rail, connect it to the included adapter rail.

For setup, connect the light meter to the transmitter, and the transmitter to the display. Everything needs to be wired together with 4-20 mA wire (not included). You need to wire the transmitter to a 90 to 260 ACV power supply. Wiring instructions are included.

								Transmitter		Display Console
Light Measurement Range	Measuring Increments	Accuracy	Input Voltage Range	Output Current Range	No. of Relay Outputs	Switching Current @ Voltage	Probe Cable Lg., ft.	Mounting Fasteners Included	Environmental Rating	Mounting Fasteners Included	Environmental Rating	Features		Each
0-50,000 lx	1 lx	±5%	90-260V AC	4-20mA	2	5 A @ 240 V AC	5	No	IP54	Yes	IP65	Configurable Alarm Outputs	0000000	0000000

Indoor Environmental Meters

Measure airflow, light, humidity, and temperature with a single, pocket-sized tool. These meters have built-in sensors that can detect multiple environmental factors in your plant or office. This helps you maintain safety compliance and track energy efficiency. A data hold function lets you freeze a measurement on the screen, giving you time to write it down. Additionally, they have the memory to store your high and low measurements. These meters are also known as hygro-thermo-anemometers.

They’re CE marked as compliant with European health, safety, and environmental standards.

Plug in an optional thermocouple probe to measure the surface temperatures of hard-to-reach areas, such as duct walls.

Meters

			Light Measurement Range					Overall
Measures	Airflow	For Light Technology	Footcandles	Lux	Relative Humidity	Temp. Range, °F	Display	Ht.	Wd.	Dp.	Blade Dia.	Batteries Included	Specifications Met		Each
Fan Meter
Airflow, Light, Relative Humidity, Temperature	80-5,905 fpm 0.95-65 mph 0.85-55 kn 0.4-25 mm/sec. 1.45-105 km/hr.	Halogen	0-1,855	0-15,000	95%	35° to 120°	LCD	6"	2 1/4"	1 1/4"	1"	Yes	CE Marked	0000000	0000000

Thermocouple Probes

Thermocouple Type	Cable Lg., ft.	Temp. Range, °F		Each
K	3	-40° to 482°	0000000	000000