Unico S-1000 Visible Spectrophotometer, 20nm, 110 V and 220V Switchable

UNICO MODEL 1000 SPECTROPHOTOMETER 20 NM BANDPASS COMPLETE WITH 10 MM TEST TUBE CUVETTES (BOX OF 12), 10 MM SQUARE CUVETTE ADAPTER, USB PORT, DUST COVER, USER MANUAL. WAVELENGTH RANGE OF 400-1000 NM. VOLTAGE PRESET AT 110V