I'm looking for a meter which will measure from 365- 470nm. Do you have one?

We don't have meter in this measurement range.

Would this be good to test for 311n narrow band UVB therapy bulbs?

sorry this model only for UVA, another model UV340B ( ASIN: B07MH4YBTQ ) can test both UVA and UVB, range 290~390nm.

Does this separately measure uv-a and uv-b? because of the different effects of these wavelengths, i need to measure them independently.

Test range from 290~390nm, can not test UV-A and UV-B seperately. We have model UVA365 which ASIN is B07M675FXH in our store, this is only test UVA, you can check

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UV Light Meter Professional UV Monitors Measurable of UVA UVB & UVC Light Measure Tester with 320~390nm Range Portable UV Sunlight Tester (Model UVC254)

UV Light Meter Professional UV Monitors Measurable of UVA UVB & UVC Light Measure Tester with 320~390nm Range Portable UV Sunlight Tester (Model UVC254)

Product ID: 226608240

🌈248-262nm narrow-band UV detection

📏1uW/cm² to 39.99mW/cm² precision range

🔧Aluminum alloy probe with secure mount

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Description

🌞 Measure the unseen UV world like a pro — don’t get left in the dark!

WIDE DYNAMIC RANGE - Measures UV irradiance from 1uW/cm² up to 39.99mW/cm² with ±5% accuracy for dependable data.
PORTABLE POWERHOUSE - Compact handheld design with easy probe mounting makes it your go-to tool for field and lab testing.
PINPOINT UV ACCURACY - Specialized narrow-band sensor targets 254nm peak wavelength for ultra-precise UV measurement.
ROBUST RELIABLE PROBE - Durable aluminum alloy probe with fixed screw holes ensures stable, on-site measurements every time.
VERSATILE PROFESSIONAL USE - Broad application spectrum ideal for healthcare, water treatment, photo etching, and breeding industries.

The AMTAST UV Light Meter (Model UVC254) is a professional-grade, portable UV radiation tester designed for precise measurement of UVA, UVB, and UVC light within a narrow 248-262nm spectrum. Featuring a robust aluminum alloy probe, a wide measurement range from 1uW/cm² to 39.99mW/cm², and ±5% accuracy, it serves diverse industries including healthcare, water treatment, and photo etching. Its user-friendly handheld unit and stable probe mounting make it ideal for reliable on-site UV intensity monitoring.

Specifications

ASIN	B089DB6T71
Best Sellers Rank	#278,401 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #109 in Lab Photometers & Light Meters
Date First Available	May 29, 2020
Item Weight	1.45 pounds
Item model number	UVC254
Manufacturer	AMTAST
Package Dimensions	10.59 x 7.36 x 2.28 inches

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