SR2 Spectrometers

High Speed and High SNR Performance

SR2 spectrometers provide a potent combination of spectral acquisition speed and high SNR for versatility without the trade-offs of comparable spectrometers. SR2 is ideal for applications including laser characterization, plasma monitoring, and absorbance concentration.

SR2 Series

Disclaimer: Wavelength range and optical resolution specifications are typical values. Actual performance may vary depending on configuration, selected components, and operating conditions.

Group	Part Number	Wavelength Range	Optical resolution (FWHM in nm)						Grating Groove Density (lines/mm)	Grating Blaze Wavelength	Available at Edmund Optics25 μm slit only
			5 μm slit	10 μm slit	25 μm slit	50 μm slit	100 μm slit	200 μm slit
UV-Vis options:	SR-2UVV300-XX	195 – 850 nm	0.86	1.01	1.33	2.06	3.80	7.61	600	300 nm	Buy Now
Vis-NIR options:	SR-2VN500-XX	350 – 1040 nm	0.86	1.02	1.34	2.08	3.83	7.66	600	500 nm	Buy Now
NIR options:	SR-2N750-XX	570 – 860 nm	—	—	0.84	1.33	2.36	4.34	1200	750 nm	Buy Now
UV options:	SR-2UV220-XX	185 – 410 nm	—	—	0.55	0.92	1.72	2.96	1800	Holographic	—
	SR-2UV240-XX	200 – 530 nm	0.42	0.50	0.66	1.02	1.89	3.78	1200	Holographic	—
UV-Vis options:	SR-2UVV240-XX	185 – 850 nm	0.86	1.01	1.33	2.06	3.80	7.61	600	240 nm	—
	SR-2UVV400-XX	185 – 850 nm	0.86	1.01	1.33	2.06	3.80	7.61	600	400 nm	—
Vis options:	SR-2VIS400-XX	380 – 1050 nm	1.62	1.38	1.71	2.75	4.86	6.99	600	400 nm	—
NIR options:	SR-2N1000-XX	650 – 1100 nm	0.84	0.99	1.30	2.01	3.72	7.44	600	1000 nm	—
Extended-range options:	SR-2XR250-XX	185 – 1050 nm	1.44	1.54	2.02	3.12	5.76	11.52	500	250 nm	—
Integration time		1 μs – 2 s
SNR (single scan @ 10 ms)		380:1
SNR (max. per second w/High Speed Averaging Mode)		25,800:1
Connectors		16 pin Samtec TFM, RS-232, SMA, USB Type-C
Physical dimensions		88.1 x 63.5 x 31.45 mm
Weight		254 g
Temperature (operation)		0 °C – 55 °C
Temperature (storage)		-30 °C – 70 °C
Best for		High light-level absorbance measurements Laser/LED characterization Color and reflectance measurements