| Specification | S-200 Vis | S-220 UV/Vis | 
| Wavelength Range: | 320 to 1100nm | 190 to 1000nm | 
| Spectral Bandwidth: | 6nm | 5nm | 
| Transmittance accuracy: | ±0,5% T (NIST 930 Filter) | ±1% T (NIST 930 Filter) | 
| Transmittance repeatability: | 0.2% T | 0.5% T | 
| Baseline flatness: | ± 0.002 Abs (330-1090nm) | ± 0.005 Abs (200-990nm) | 
| Noise level: | ? 0.001 Abs (500nm) | ? 0.005 Abs (250 nm) | 
| Baseline stability: | ? 0.001 Abs/h (500nm) (after 2 hours warm up) | ? 0.005 Abs/h (250nm)(after 2 hours warm up) | 
| Stray light: | ? 0.5% T | ? 0.5% T | 
| Wavelength controlled variable: | 0.2nm | 0.2nm | 
| Wavelength accuracy: | ± 1nm | ± 2nm | 
| Wavelength repeatability: | 2400nm/min (0,2 sampling interval without filter) | 300nm/min (0,2 sampling interval without filter) | 
| Wavelength scan speed: | (0,2 sampling interval without filter) | (0,2 sampling interval without filter) | 
| Wavelength move speed: | to any specified position within 1sec. | to any specified position within 1sec. | 
| Absorbance: | -0.3 to 1.999 | -0.3 to 1.999 | 
| Transmittance: | 0 to 199.9% | 0 to 199.9% | 
| Spectrum Scanning: | Yes | Yes | 
| Concentration: | -300 to 1999 | -300 to 1999 | 
| Selectable Resolution: | 1, 0.1, 0.01 or 0.001 | 1, 0.1, 0.01 or 0.001 | 
| Light source: | Tungsten Halogen lamp | pulsed-Xenon lamp | 
| Detector: | Silicon photodiode | Silicon photodiode | 
| Display screen: | 4,3 inches colorful touch LCD screen | 4,3 inches colorful touch LCD screen | 
| Printer: | specified 80-column thermal printer (series port) | specified 80-column thermal printer (series port) | 
| Metering mode: | Single beam | Single beam | 
| Memory: | SD card storage | SD card storage | 
| Time Scan: | Graphical and calculated concentration value | Graphical and calculated concentration value | 
| Analysis: | Absorbance and wavelength of peaks and valleys | Absorbance and wavelength of peaks and valleys | 
| GLP: | Real time clock and calendar, Self Diagnosis | Real time clock and calendar, Self Diagnosis | 
| Size: | 400 (W) x 280 (D) x 160 (H) mm | 400 (W) x 280 (D) x 160 (H) mm | 
| Power requirement: | AC, 100-240V, 50/60Hz | AC, 100-240V, 50/60Hz | 
| Power consumption: | 100VA | 100VA | 
| Communication ports: | Serial printer port connects thermal printer, USB port connects PC, SD card port saves data and measurement methods, Accessories port connects and controls serval options | Serial printer port connects thermal printer, USB port connects PC, SD card port saves data and measurement methods, Accessories port connects and controls serval options | 
| Weight: | 4 kgs | 4 kgs |